Step 1: What You Need
- Bra (best to use one that is foam lined/lightly padded to give some structure, as the tiles have some weight to them)
- Mirror tiles (loose is better than those sold on a sheet for this application)
- Glue gun
- Small strip of fabric that matches your bra
- Glass cutter (not pictured, inexpensive and available at most hardware stores)
Before getting started, put some thought into your tile size. A quick google search will show you the range of disco bra styles out there. Lady Gaga's and some of the nicer copy cats out there use very small tiles, so it is easier to have a more seamless look without having to cut glass. Larger tiles will look sloppy and require large gaps unless you cut the glass to shape, which is what I've done in this instructable (I used 1/2" square tiles). If you want to avoid cutting tiles and gaps will bother you, I would recommend going smaller, although it will be more time consuming. Both 1/2" and 1/4" square loose tiles are easy to find and inexpensive on ebay.
Step 2: Start Laying Tiles
I used a glue gun, and glued them one by one to make sure the glue was hot enough to make a lasting bond. From wearing this bra all week at burning man two years in a row, I will say that I've lost three tiles. There are probably better glues out there, but given the ease of the glue gun I would probably just do that again should I make another one.
To start I laid down a row along the bottom of the bra along the underwire, and then a row along the top. I then followed the top row until it reached what looked like a natural place to have a seam, to complete the top half of the bra.
Step 3: Create a Clean Edge
Step 4: Fill in the Bottom Half
If I were to do it over again I could have spaced all my rows just slightly further apart to avoid having the small gap left in the middle as you can see in this picture, but I just filled it with small mirror slivers.
Step 5: Finishing Touches
And with that, you're done! Go enjoy your fun new costume piece!