ID these clamp things

[KidVermicious]

Picked these up in a box of misc tools. Looks like they're intended to clamp onto the edge of a table, and then hold something between them - do they have a name?

 

[fourwd1]

Thing-a-ma-jigs

 

[Ol'Blue]

Its a clamp thing, just like that gizmo thing and all other strange things we have in the garage next to all the things......

arty:

 

[97BlackAckCL]

Thing-a-ma-jigs