What can I make from spent 50BMG primers?

[Twmaster]

Just got ~70 once fired 50BMG cases. These primer cups are big. Got to be good for swaging some kinda pill!

[BT Sniper]

http://castboolits.gunloads.com/showthread.php?109313-30-cal-bullets-from-50-cal-primers!

Here you go. 30 cal