Give each group a work area
Set a shallow tray or a large sheet of scrap paper at each table to catch loose craft materials. Keep the main supply container at your station and give each group a small portion when they are ready.
Teach the cleanup routine before starting
Model where scraps go and where shared tools get returned. Assign a materials helper and a table checker to each group. Call cleanup before the transition so students have time to put things back in order.
Choose a finish that fits the time you have
If cleanup time is short, use metallic crayons or paper shapes for a sparkly effect. Ask students which material was easiest to use and tidy up, then use their answers when planning the next craft.