This is a fantastic idea. I love the idea of putting my mig that doesn't get much use to a readily accessible machine for Forman3D to use to help others develop their ideas.  
http://motherboard.vice.com/blog/you-can-now-3d-print-with-metal-at-home

We have been processing a lot of acrylic to make custom parts, drink coasters and kids puzzles. Each time we order for a particular project we make sure to get enough to bolster our own stock of a particular color or thickness for the next job that hasn't shown up yet. We are developing quite an inventory of plexiglass colors and thicknesses for custom requests. We have also partnered with three different suppliers now so we can get things we don't have in-stock in-house quickly... long story short, we now have a big plexiglass section on the Laser Stuff page. 

We also started processing a lot of gifts during the holiday season. So we have developed relationships with several suppliers for laser engrave-able gifts like Alder Wood picture frames, Klikit Silicone bands, aluminum dog tags, etc... 

Check out our web store and get yourself something nice! 

Next blog post will be about something cool we made during the holiday season. I promise.