Nope, nothing economical, but I did find a GREAT mat-- my NH rep sold me 20x24" piece of Rowmark Seklema Tablemat for the price of a 12x24... And for those who've only used the pink silicone mats or never tried this, the Seklema is about 1000% better. It's actually a job to pry stuff off of it. Where I used to worry about 1/8" thick acrylic pieces moving when doing cutouts, not with this. The sticky is like a crystal clear stiff gel, extremely grabby. and pretty forgiving, it can handle light cuts better than the pink stuff, it seems to 'move' rather than cut, so an hour afterward the cut just fills back in. Getting too deep will leave a mark though.

It holds the 3M taped stuff and any metal plates I've tried great. Papered plex is a bit iffy but it does hold it well enough to engrave it. My pink mat is like a post-it note compared to this But it ain't cheap.