I glue one part to the blackboard and the other part to the pencil. When a student needs a pencil, he goes to the blackboard, takes a pencil and writes his name on a blank space. Works perfectly!
XFasten Super Strong Duct Tape, White, 2" X 50 Yards Waterproof Duct Tape For Outdoor, Indoor, School And Industrial Use
33 Review
TapePlus Gaffer Tape - Large 2 Inch X 40 Yards Roll - Versatile Black Tape For Gaffers, Ducts, Floors, And More
31 Review
Gorilla Crystal Clear Repair Tape, 1.88β X 9 Yd, Clear, (Pack Of 1)
32 Review
Gorilla Tough And Wide Silver Duct Tape, 2.88" X 25Yd - Pack Of 1 For Superior Strength And Durability
23 Review