: Sculpey isn't exactly clay as we think of it - it's PVC-based. There are a
: couple of versions - Super Sculpey with high tensile strength, Eraser Clay
: makes rubber-like erasers (bumpers?) Elasticlay to make flexible molds
: (Hmm). Haven't used any for stress applications, but toys I've made with
: my nephew have held up to a 6-year old's energies - so there's some
: toughness there.

: I've attached a link to check out the products.

I have used the eraser clay to make custom index grips for paddle shafts. It works fine for this but would need to have a reinforcement core to be used as a grab handle. For my new kayak I picked up a couple of the 2 piece rubber and plastic Necky handles and replaced the top piece with wood to match the kayak.