This is a simple process for customizing
your Airsoft Custom Gun's pistol
grip.
Roll it into a ball,
and keep rolling until no lines remain in the surface. This
way, it will cure all smooth.
Position the extra padding where you need
it, and squeeze. Pat down any fingerprints, keep patting, and
working the edges so they're smooth in
line.

An afternoon or two in a warm dry place,
and it's good to go. It's firmly adhered to the fresh paint
here, but a bit of cyano may be needed to keep it
there.