Step 5: Quick & Easy Bonus method
It is very likely you can have something that will do the job right next to you.
Your touchscreen phone!
While not quite as reflective as the hand made option, it makes for a good alternative as you are likely to have it with you.
The downside to the smart phone is because its flat, it has a much smaller field of view.
Either way, here are some examples taken using the smartphone, as well as a one of the Claude glass so you can compare easily.
I hope you enjoy the instructable. Please post pictures of your own in the comments.