Acrylic enclosure for Arduino
Making your own is quite possible, especially if you own a router (or even better a router table). You need a V shaped 90 degree router bit, a tube of proper perspex glue and some acrylic sheet. The glue is hard to find, but plastic sign manufacturers generally will sell it. Unless you are a DIY expert, I suggest the gap filling type of glue rather than the watery product that only fills perfectly matched surfaces. Try searching Youtube on "acrylic box making". There are several videos. My first two efforts were pretty bad, but the last couple are fine, and are of course exactly the right size.