You put your hand or object in one side, then flip it and then a shape or said object remains in the pins (not sharp)
Tamiya Fun Craft Series No.194 Pin Spike Tire Set 65mm Diameter 70194
Model Maker Wooden-Handled Pin Pusher with Depth Stop Model Tool MM022
Model Maker Swivel-top Pin Vice & Five Drill Bits Model Tool MM008
2pc Pin Pusher Set 170mm & 115mm Pin Pusher Nailer with Depth Stop Steel Tool
GodHand Quick Power Pin Vise GH-PBQ Hex Shaft Pin Vise Model Tool Silver
Activity Fun Blast Into Space Solar System Pack