not xactly DIY but close.. emachine shop
 

just stumbled upon this. looks pretty cool though ive never used it
Home Online Machine Shop Fabricate Custom Parts Instant Pricing

This sounds like a potentially useful resource. Thanks for the post.

thedutchtouch -

I'm thinking this would be a perfect resource for throttle-body-spacers.

CarloSW2

I've actually had some parts made by them. I had them do a run of 30 brackets for a project a while back. I think it cost me about $8-$9 a piece. They do a great job. I wanna say the prices have gone up a bit with the whole economy thing. Looks like that same run will cost me about $12 a piece now. Depending on what your looking at making they can be kinda pricey. You really have to play around with the tools and material to get the best deal. Check the packing option, If you have them wrap parts individually it costs more for shipping.

The software is quick and easy to use and the instant pricing is great. I've also used it to design a few items I machined myself with the idea of eventually having them do a bigger run.

This is awesome.

Thanks for the info!

Looks very useable. As a side note, throttle spacers net 0.0000 hp on vehicles like mine, likely because of the plastic intake manifolds. On the Ford Taurus w/aluminum intakes, they did help.

ill give it a try thnx for the heads up on this

I've used eMachineShop numerous times, and have generally had very good results.