Flap handle grip for LS6

The rubber pistol grip on the flap handle in my LS6 is pretty badly
deteriorated. The spoiler handle grip is also going down hill. DG
replied to an email that they can't help me with replacements.
The next step could be fabrication, but I thought I'd try the group
first. Is there a source for these handgrips? I noticed pictures of
the JS1 Revelation cockpit showed grips that look similar.
I have seen wooden replacement grips and I could carve some. But I
thought I'd try and mold some.
If you have any tips or techniques let me know. I don't know what
rubber product to use, but we've got a local rubber products vendor
with a large inventory.
Thanks
Robin - RF