Impact Gel Grab Pads are the material of choice to back your lipo's and ensure they don't slip an inch! They are made from a naturally sticky material that won't leave a residue when removed. You can wash them in warm soapy water to restickify (is that even a word? It is now!) them! They are made for cell phones, and sized accordingly so a single grab pad will last you a while!
We looked into having custom sizes made but unless someone wants to pre-order 10,000 of them it's not going to happen!