Telling Time Clock/Watch Dials Clear Transparency Collage Sheet by yourATCstore. Clocks, clocks and more clocks in various sizes and colors and now this collage sheet is available on a transparency sheet. Clocks are very popular items to use in artwork these days. Use them clear images for ATCs, greeting cards and collage project. Cut a clock out and pour epoxy over it so that it looks like it is under a watch crystal. Use these images with other clock embellishments like our clock dials or clock crystals. This sheets is professionally printed and come in a crystal clear bag for protection. Sheet measures 8 1/2 in. X 11 in. Acid Free.