http://www.gamingdelight.com/games/ringsandsticks.php
There are five types of sticks on the bottom of the screen. The numbers next to them show how many times a type of stick may be used. Your objective is to make the tree grow so that its branches go through all of the rings. If you miss the rings, click the reset button to start the level over again.
http://fantasticcontraption.com/
Puzzle solving game like the good old incredible machine game.
Hints:wheel that turn can only move on the ground, rods is use to support 2 wheels together
http://www.ferryhalim.com/orisinal/g3/00bells.swf
Another simple game, move your mouse to move the rabbit, click to start the jump.
Basically just jump onto each bell and see how high you can jump