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Indie Gala has the Crazy Machines Ultimate Bundle live at their site.
Pay the minimum (currently $4.89) for:
Crazy Machines
Crazy Machines 1.5 + 2 DLC
Crazy Machines Golden Gears
Crazy Machines Elements
Crazy Machines Elements Collision Course & Mental Activity
Crazy Machines Elements Gadget Fun & Tricky Riddles
Crazy Machines 2
Crazy Machines 2 Liquid Force (Fluid)
Crazy Machines 2 Invaders from Space
Crazy Machines 2 Invaders From Space – 2nd Wave
Crazy Machines 2 Jewel Digger
Crazy Machines 2 Pirates
Crazy Machines 2 Time Travel
Crazy Machines 2 Back to the Shop
Crazy Machines 2 Halloween
Crazy Machines 2 Happy New Year