Was fiddling around with the idea of rather then a budget limit or something similar that I've seen around here what about a block limit? I haven't seen any such thing as far as i've looked though I could have missed it. For instance say your given the option to choose 5 blocks, and you chose 4x4, brace large, strut, ramp xl and antenna satellite, those are the only blocks your allowed to use for the entire map. Special consideration could be placed on blocks such Colleseum Wall, and such blocks could be used with certain rules in effect such as "cannot be used as a floor" or something as such. Just an idea? If you have any other contributions, just add.
One contest idea I'd love to see come to fruition would be that you NEED to use all 10k. Sure, there's gunna be people tossing in random lights and whatnot, but the very best will have big, complex, interesting, and balanced maps.