Drive shaft woes

[Bjorn1]

So I'm running the rigs with my daughter yesterday, naturally I give her the sawback since its slow, she is 5 so speed isn't necessary for her, she high centered on a rock and popped the e-clip off one of the pins which of course was instantly lost, any idea as to what pin I can use in the mean time until I can order a new one? The only hobby store in Tucson is closing its doors and will not order it for me. Was going to try to rig up a drive shaft from a traxxas if possible, ace hardware by me has hobby cars, but only carry traxxas. Any help will be much appreciated.
Bjorn

 

[JatoTheRipper]

A lot of people use cut down drill bits in a pinch.

 

[Bjorn1]

Alright, makes sense, I was thinking about cutting an Allen key and turning it with a drill to cut some grooves to accept some e-clips, but that sounds easier