Just saw this thread, and wonder if a company that custom makes wetsuits couldn't add webs to existing gloves, or make a custom glove for you? Try
JMJ Wetsuits or
Otter Bay
I am going to ask a few questons of divers with handicaps, as I do not have any, but am very interested in applying what I've learned over the years to these kinds of problems. First a comment on the above post. We (divers who began a long time ago--1959 for myself) used to make our own gloves. It is simple, and straightforward. All you need is sheet neoprene, skin one side (no neoprene on one side), a pair of sissors, a pen and some neoprene cement. We made three-finger mitts for use in cold water (Oregon diving), and used 1/8 inch (3 millimeter) sheet neoprene. We would simply put our hands on the sheet neoprene, with the thumb and forefinger separate, and the last three fingers together, and trace around them. We'd leave about a quarter inch for the depth of the fingers (maybe a little bit more--better too big than too small), and cut them out. We'd then flip each and do another set for the mirror-image other side, and simply glue them together. They would last several years, actually, and keep our hands very nice and warm in cold water. Why couldn't you use this same technique to make webbed customized webbed gloves for yourselves?
My other question has to do with webbed gloves as propulsion underwater. Are they (webbed gloves) actually effective? I say this because you need to recover the arm stroke, and webbed gloves are actually made for the freestyle stroke, where the recovery stroke is above water. If you are swimming underwater, how do you recover your hands/arms for the next stroke? Are you using a modified breast stroke? If so, do you have a technique such as is used by the seals for collapsing the web, or streamlining the hands, so that the webbing doesn't "catch" the water on the recovery?
I have been studying underwater swimming techniques for many years, and have developed my own type of underwater swimming, which may be very applicable to people with double amputations, especially above-the-knee double amputations. Is there an interest in this type of technique?
SeaRat