Bondic Starter Kit: Liquid welder that only sets under UV light.
Amazon.com : Bondic LED UV Liquid Plastic Welder, Cures Quickly, Adhesive Repair Tool for Fingernail Gems or Cracks, Complete Nail Repair Kit (LED Light & Liquid Cartridge in a Tin Case) :
Bondic Bondic Liquid Plastic Welder w/LED Light Hobby and Model Plastic Glue #1