YouTube user jeremiahjw has some compelling slow motion videos of stuff blowing up. Not buildings or robots, although he does compare himself to Michael Bay. The focus of his spendid 'splosions is small stuff like the toy cars above, a variety of outdated gadgets, and most eloquently, Mr. Potato Head. All set to wonderful, happy music.
About the embedded video:
The cars I used were "off brand" cars and Matchbox. The yellow truck was a Hotwheels, the only one to survive un-damaged. Filmed on the Casio EX-F1 at 600fps. One shot is at 1,200fps near the end.