Different tables set up for the scouts to have a go in small groups. At each table, there is a different craft.
This truly depends on the crafts you intend to do.
Each leader/ helper runs a base, offering different crafting activity. Split the scouts into small groups, we are running 15-20 minutes bases- time may affect the activities you choose to do.
We have done this before with a beaver sleepover which worked nicely- it was a magical theme!