Might use a xenon flash tube as found in pawn shop items for
camera's. Would have to fish the leads out to hook to the
staw wire wrap but that snap of voltage could either collapse
the straw or stick the magnet into the ceiling. It will
fire up a the flash and the coil together, it you like.
There are are small 12v condensors found in lawnmowers or
chainsaws points ign systems blister packs on rack that could be
charged up and then discharged for a snap to the staw.
Cute trick is charge 1 up and toss to a 'friend' for a snap.
9 V battery can smoke some fine wires so beaware.
Maybe could get the straw to collapse around some water
or oil for a jet show too. On the extreme of this some
hobbiests shrink coins by the magnetic impact.
Also if the tube is say aluminum and then drop the
magnet down the hole you may learn some other stuff.
Hope you don't get hurt or into too much trouble by this.
hobot