How to make silhouette people

Hello all, I am donating a cake to a cancer event for auction. They want it a 50’/60’s theme, so I need disco dancers etc. I have read that some use patchwork cutters. Anyone know where in the Durham region (in Ontario Canada) I could get some for a good price or how I could easily and quickly make these. I have 4 cakes to do in that same week so time is limited. Also do you think I can make these ahead of time wrap them really good so they do not dry out before use?

Thank you in advance for your help!!
Angela