Tim Holtz - Idea-Ology -Â Metal Type Charms 16/Pkg (TH92819) Tim Holtz Idea-Ology Type Charms. These sixteen antique silver metal charms were designed to be used as a decorative element by layering with the thirty-two included alphabet stickers or by using a 1/2in punch on papers or photos then topping it with one of the sixteen clear epoxy stickers. Imported.