Or as I call the TV; 'the idiot box' or 'moron chamber'
Carbide based firecrackers? I take it these are not a commercial product?
Acetylene has oh-so-much potential for shits and giggles (Lit would probably confirm this:P )
Filling balloons full could be fun, works well with other flammable gases (carefully indeed if H2 is used, due to the force and loudness of the detonation though, mainly because of the noise)
Or rather than balloons, strapping a block of DIY incendiary putty/wax in the gaps between those small acetylene and O2 welding bottles to let the whole hog go off at once of course.
Keep thinking lately that it would be a whole lot of fun to do it with MAPP gas cylinders (methylacetylene/propadiene), strapped up to both a tank of O2, and a two-stage shocked charge, one to disperse the fuel, the second to ignite it, in a FAE type device.
Lol. A properly made FAE is something I've long wanted to do, ever since first reading about FAEs, BLEVEs etc. Always wanted to find a derelict building, and after stripping the wiring and pipes from the walls, lead from the roof etc. to then go and level the building with a big fucking vacuum bomb.