Step 1: Materials and Tools
You will need the following:
Fake mustache, $4 at a costume store. Get a big one if you want a larger pocket. Try to find the kind that sticks on with an adhesive strip instead of spirit gum.
Small piece of plastic, I used a theatrical gel sample, a piece of transparency would work.
Hot glue gun
Item to hide such as lockpicks or a small piece of paper
Step 2: Make the Pocket
Cut a strip of plastic as wide as you can make it while still fitting under the mustache. You need enough room to hold your item, plus a little bit on each side to put glue on.
Step 3: Attach the Pocket
Put a small line of hot glue on three edges of the plastic strip, as close to the edge as possible. If you get glue in the middle of the plastic, wipe it off so you have room for your object.
Step 4: Insert Item and Rock Out!
Slide your item into the pocket on the mustache once the hot glue dries and you're done. The adhesive strip your mustache comes with will still stick to the plastic, so you're good to go! You may want to shave off any real facial hair before applying the adhesive so it won't hurt as much to remove.