I installed the Metro door weatherstrips on my GP this afternoon, for obvious reasons as the pic shows (my old pieces, brittle, torn, missing etc). No photo shoot cause it's really a simple job with one exception. What have you guys used to push those retaining pins into the holes in the door??? I used my thumb so as not to damage the rubber, and that thumb is killing me about now.

It would have to be something pretty firm but still flexible enough to not cut the seal.