Trying to find a game.......help! please :)

Hiya guys.

I am trying to find a game that I always used to play a few years back......I don't know if anyone will know what I'm talking about!

Right I'm not sure if it was a game that came on my computer....it may have been, but basically the idea of the game was to create a system on screen using items such as tubes, matches etc to make something happen.....example below

.....so if i would have a screen in front of me with just say 2 rockets on it, and a couple of tubes....the idea was to work out how to get the rockets to light and explode by using the equipment i had in front of me (i could add like extra tubes, balloons, matches, anti-gravity pads etc) you could make the ball roll by creating a ramp, then the ball would go through a bent tube which would change its direction then the ball would maybe land on a detonater that would blow a wall futher in the 'system'..... by blowing this wall another ball could be released which would free a balloon, which would then pull a pin from a lighter to create* flame which would light the rockets and they would blow up.......

on*different levels*different things could be used; like a hamster in its wheel to make a rotating belt move, a tin opener to make a cat run. there*were levels where you had to get people in houses*and things too.
*
i can picture the game and it's really bugging me cos id love to play it again!! I really hope someone can help me.

thanks!