Mods are at the heart of Zippy development. The original working prototypes were built from modified common household products. Some of those prototypes are still in use today. Building custom prototypes for customers in advance of production device delivery is a tradition. See how far we've come.

Early development. 

Early development. 

The first prototypes were from 1 1/2" PPE plumbing nuts, measuring spoons, epoxy cement, and hockey stick wrap. The full function of the golf ball was there from the start. Then, handles were requested, (fashioned from a strawberry huller and a potato chip bag clip) mounted on the shell, and each iteration made it better. Britton and Danny were using prototypes daily in professional therapy sessions. We were on our way!

If one ball was most excellent, how much better could two or three devices be, we wondered? Development continued with production models using a wonderful epoxy modeling putting, Milliput, to join devices in a variety of forms. 

In 2013 we gave volunteers our two ball prototype devices to test. These prototypes were a hit, the devices are still being used, and we love our test panel. 

Second Generation Zippy Double. (I think Britton has this one.)

Second Generation Zippy Double. (I think Britton has this one.)

We crafted a double for a rehab client with strap channels in opposing direction so velcro straps could run criss-cross for versatile strapping alternatives.

Initial assembly. Lateral strap channel.

Initial assembly. Lateral strap channel.

Details.

Details.

Then came the Triple Zippy.

It doesn't take much epoxy putty to make a strong prototype.

It doesn't take much epoxy putty to make a strong prototype.

Double with Rocker. Could be doing "harp fingers" support, so to speak.

Double with Rocker. Could be doing "harp fingers" support, so to speak.

We experimented with a silicone based putty and built some killer double and triple mods with colorful putty combinations. 

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Now we will build custom two and three ball prototypes on request.

We sent these prototypes to the AMTA show to showcase our new model development path.

We sent these prototypes to the AMTA show to showcase our new model development path.

https://www.etsy.com/listing/222651874/triple-zippy-rolling-ball-therapy?

Doubles for testing. Before final wrap.

Doubles for testing. Before final wrap.

Velcro in place in longitudinal strap channel.

Velcro in place in longitudinal strap channel.

Funny face...

Funny face...

After a little finishing this device now belongs to Riley. We sent after he reported he'd worn the dimples off his first device. #zippylovesrileypoor 

After a little finishing this device now belongs to Riley. We sent after he reported he'd worn the dimples off his first device. #zippylovesrileypoor 

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We are seeking funding for expanding our line by adding simple, affordable adapters for two and three ball devices.