Lego Greebles Parts Interest?

[kresty]

Hi All, with the 750 bricks you mention above, what will that weigh?  I do think the vacuum forming is a great idea or even going down the ABS 3d printing route for just the façade to reduce the weight.  I don't think we will know until it has been built. Time to 'borrow' my sons lego...

It's going to be "heavy".   Lemme figure it out.... Yes, some sort of lightweight system is probably better, this offer is expecting folks to want a single side to create a mold from. 

The hard bricks to find for the mold/borrow story are the tiles.  Tiles are $33+shipping from Lego Pick a Brick, alternatively I'll probably get enough for extras but it won't save much.... I'm wondering if the 1x2 black tiles are on the "wall" at the Lego Store.  That'd make it *way* cheaper.