Dynamite/TNT tubes/sticks. Add (flexible) filament (1,75mm) as fuse.

Optionally you can print 3 sticks + accompanying  detonator and create a bomb. 

The tubes can of course  be used standalone. If you plan to throw them at people, I recommend printing with flexible filament (e.g. TPU).

No supports needed.

To comply with recent EU “Film trope” regulation, the detonator can be equipped with one green wire (or other colour of your choice). If you need to deactivate the bomb, this wire can be cut.