Silicone Grip Tape
Silicone Grip Tape self-fuses without heat or adhesive, forming a solid rubber within 1 minute of application. This stuff is MAGIC.
Tape comes in black or clear, or colors and provides excellent grip for spinning staff. Each roll is 1 inch wide and 10 feet long, enough plus extra to provide grip for a FutureStaff. Also works on Levi Wands to turn them into contact wands, and 3 rolls is enough to create a grippy hoop.