Boom Blast Stix

From BoardGameGeek:

Boom Blast Stix is a stacking game with cleverly engineered pieces that spring open. Pour out the pile of triangular stix onto the table. Take one of the stix and "lock" it by bending it so it's spring loaded. Then, place the piece onto the playing surface. Repeat until one player triggers the pile of stix and they fly off in every direction!