That is amazing! 

You have a lot of spare time, don't you ?

Lol, so what you need now is a short piece of Fuse, that is ignited by the match head and runs along the shaft of
the match and sets off a small pyrotechnic charge attached to the match shaft.

You could have a small smoke bomb, incendiary, or a little banger.

Kind of like Hawkeye's special arrows

What works well is a small .22 blank surrounded by a simple saltpetre and icing sugar mix.
It's really small, makes a decent bang and is very easy to make.

Not a clue how things are in Finland for making your own fireworks.

But you can still buy most things necessary for simple pyrotechnics in the UK.

The mini  .22 blanks are used in starting pistols, so can be found in most countries quite legally