Invites to experiment.

Did the thing for some time now and am very happy with it.
It invites to experiment with a material.
So sound picks from cream cheese covers (Philadelphia z. B.) very nice on the 12-string.
Paint bucket lids are also good starting material.
Since I have the PickMaster I give also like plectrum, and the recipients are happy really.
Regarding quality, it really makes sense to fresh platelets at the edge with a knife or emery rework (time 5 seconds)
Even with thick, brittle plastics, I would have concerns.
Are briefly interesting from the sound also produces Picks cardboard.
My recommendation: Buy and experiment.

ps sometimes I glue picks with adhesive to public places for free takeaway.