I made a first surface mirror recently after following a how to that was posted by cerupcat. here’s a link to that post http://nuigroup.com/forums/viewthread/383/
A bit of advice; it’s not as easy as it seems from reading the how to, and if you get the mirror backing off then the aluminium is EXTREMELY delicate. I used a paint brush to apply the paint stripper at first, and even something that soft left tiny scratches in the reflective surface. Also, I tried to remove the backing from two mirrors, one was an old one I had lying around the house, the other was a really cheap one that I bought from a local DIY store. The DIY store mirror had a red coloured backing whereas the other mirror was a light blue. It was much easier to remove the backing from the DIY store mirror, so look for cheap mirrors with red backing if you can (I’m in the UK but imagine it’s a commonly used paint).
Even on the easier mirror, the paint did not ‘bubble up’ like it says in the guide. I had to *very gently* rub at the paint with handfuls of cotton wool after letting the mirror soak in paint stripper for hours. Keep reapplying and gently rubbing and you will get a front surface mirror that is perfect. Just don’t ever touch it or get it dirty....
Oh yeah, I’d tell you to wear rubber gloves but mine dissolved on contact with the paint stripper and gave me a mild burn. Be careful with the stuff.
I also thought about using acrylic mirror but found that the sample I got had tiny ripples in the reflective surface. I think maybe acrylic mirrors are lower quality than glass/aluminium so any gain in image quality from being front surface is cancelled out by imperfections in the material.
Hope this helps!