The light beam one is pretty easy in the frost level where you meat machine ghost, go there about 3 times and towards the end where you keep rotating the beam, it counts when you break vases and stuff too. or at least it does on the Wii version.
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Yeah, I'm major OCD - I have them all, every one of them, and most of the easy to find variants. My favorite is Quick Draw Rattle Shake!
Level 14 works well for the light beam also. Once you get to the areas with the puzzles A lot of the enemy will follow you right through the beams. As far as the pushblocks go I like Shroomboom's and Cynder's challenges.