Jonathan Castro Designs
Beautiful, functional ceramics.
100% handmade in NYC.

Get-a-Grip Cups

A Grip Cup is one of those things that just feels right, and whether you're cozying up with a warm cup of tea or sipping your signature cocktail, it will quickly become your favorite cup. Hand-thrown and altered on the potter's wheel, every Grip Cup is unique.

Double Shot Grip Cup
2.5" X 2.25" X 2" tall.

Perfect for espresso, sake, or spirits.

Skinny Grip Cup
2.5" X 2.5" X 3.25" tall.

Whiskey on the rocks. A nip of sherry.

Medium Grip Cup
4" X 3.5" X 3.5" tall.

Your morning coffee, afternoon tea, or evening cocktail.

Big & Tall Grip Cup
3.75" X 3.25" X 5" tall.

A tall glass of water. Sweet tea. Lemonade.

Swirl Mugs

Our swirl mugs are the perfect combination of form and function. They are a pleasure to hold and drink from, and the swirl detail highlights their handmade nature. Our mugs are thrown on the on the potter's wheel, with pulled handles attached afterwards. It's an extra step, but it makes the mugs stronger and more comfortable to hold.

Mini Mug
3.25" X 3.25" X 3" tall.

Care for a cappucino?

Small Mug
3.75" X 3.75" X 3.5" tall.

How about a latte?

Medium Mug
3.75" X 3.75" X 4" tall.

An extra shot in mine please!

Bottles and Bowls

At Jonathan Castro Designs, we believe that functional products should be beautiful and beautiful objects can be functional. You'll find yourself using our bottles and bowls for everything. Whether you're slurping ramen from our Swirl Bowls, or displaying fresh-cut flowers in our Grip Bottles, our functional ware is all beautifully designed and handmade with the needs of daily life in mind.

Ribbed Vases

We love our ribbed vases but they look even better with a bunch of fresh flowers in them. Hand thrown and finished with our signature glazes, they're a sophisticated, modern accent in anyone's home.

Small Vase
3.5" X 3.5" X 4.5" tall.

Spring Daisies or a handful of violets.

Medium Vase
4.5" X 4.5" X 5.5" tall.

Snapdragons or Queen Anne's Lace.

Large Vase
5" X 5" X 6.5" tall.

Eucalyptus. Sunflowers. Hydrangeas.

Anomaly Pots

The Anomaly Series is one of our signature lines. All of the pieces are hand-thrown, and then the "anomalies" are attached before firing. Playful, functional, and totally eye-catching. Due to the unique nature of each Anomaly pot, most pieces are made on a custom basis, and may require a little extra production time.

New and Seasonal

Grip Candles

We're super-excited about these! Just in time for the holidays, we've poured a limited-supply batch of beautiful, scented, soy wax candles, with lovely crackling wooden wicks. We've added a lovely warm pomegranate-sage scent, and maybe the best part is when you're done with the candle, you're left with a Grip Cup!

About Us

From our hands to yours.

The objects in our lives should be thoughtfully designed, expertly crafted, and accessible to all. Our designs are modern, beautiful, functional, and affordable, and our products are 100% handmade with your daily routine in mind. Jonathan Castro Designs products are made from porcelain clay and finished with lead-free, original glazes. We make each piece entirely by hand, one at a time, in our New York City studio. We make them with love, and we know you will love them too.

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Think our products would be great in your store? We're always looking to connect with more customers and forge relationships with new retailers, so if you're interested in stocking our line of handmade ceramics, please fill out the form below and we'll get back to you shortly. You can also email us at

Thanks for your interest!

Contact Us

We'd love to hear from you!

If you have a question, check out the FAQ below, or drop us a line. You can email us at or fill out the form

Thanks for getting in touch!

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Frequently Asked Questions

How are your products made?

All of our products are handmade with porcelain. Almost everything is hand-thrown on the potter's wheel, and finished with original glazes. All of our glazes are made from scratch with our original formulas. All of our products and glazes are lead-free and cadmium-free.

Are your products dishwasher safe?

All of our products are dishwasher safe, though we do recommend hand washing them. The dishwasher can be a chaotic place! If you do use the dishwasher, you may notice hairline cracks appear in the glaze. This is cosmetic and will not affect the performance of the piece. To avoid this, we recommend hand washing.

Are your products oven and microwave safe?

Yes! All of our products are safe for use in the oven and microwave. As with all ceramics, just take care to avoid thermal shock or sudden temperature change. For example, don't place a hot dish on a cold, wet surface. Do not use over an open flame.

How can I set up a wholesale account?

Thanks for your interest! Fill out our wholesale form, and we'll be in touch.

Can I buy your items online?

We don't currently sell online, but we're working on it! Join our mailing list to be the first to know when we start selling online.

Do you accept custom orders?

We sure do! Just use the contact form above, or send an email to