5 Uses for an Eraser
1. Gently clean gold jewelry with an eraser.
2. Remove marks from your piano keys with an eraser.
3. Use an eraser to clean cotton upholstery, rub lightly.
This page contains the following solutions.
Wedge shaped pencil erasers (pencil toppers) make good replacements for lost glue bottle caps. The round hole fits many of the "squirt" type bottle tips, while the wedge end will go into the slotted type end that comes on many wood glues.