The Tub Lid Mirror
This is probably the most popular idea I've had at troops. So many times, we have to use car reflections or random things to try and see if our costumes look ok during events. There isn't always a mirror. Amazon carries plastic mirrors that I velcroed a couple to the bottom of my tub lid. When you lean your tub lid up against a wall, you can angle it to see how you look! I use this so much. And I'll find many of my fellow trooper's hover over my way to do a review of their kit as well. I also don't have to worry about heavier real mirrors that might crack, shatter, or add weight to your lid. Especially if you use your lid as a shelf like I do too!
Amazon.com: JUNEBRUSHS 4 Pack Self Adhesive Acrylic Mirrors, 12x 16 Inch Mirrors Tiles,Flexible Plastic Sheets Wall Stickers,2MM Thick Mirror,Frameless Small Mirror : Home & Kitchen