Thread: Wanted, ideas for reactive target(s)

It just so happens that over the years I have accumulated a fair few pulled primers(unfired that is) due to various cock ups and mistakes, and looking to put them to 'interesting' use I must have in excess of 500, so there is scope for something "BIG", or several/many "small" events. They are pretty sensitive little suckers(as I've found out the hard way a couple of times ) so I figure something cute could be done with them.
All ideas will be treated/evaluated with safety in mind, and if anything goes wrong I'll deny everything !

Thanks in advance for any or all ideas, no matter how crazy