You get a whole seat, but you'll only need the edge of it:
Versa - Art Rock for medieval knights: What happens when three 35-lvl magic-users join a couple of Kenders with +3 amulets of rock? EXPLODERIZE!
Lazarus Taxon - These guys are so great that they will make you exploderize.
Mujeres - Teenage Hampster rock: Legend has it that exactly 33.5 minutes into their set they play a note so high that any belt buckles in the room made out of glass will exploderize.
For physical events that happen at a specific time. For example a concert, or dance performance. If there are multiple shows, you can still duplicate your event to cover them all.