Also, I try to learn a little about something I make that I didn't know before. Apparently after reading a lot, I didn't know too much about glow in the dark stuff. Now I know. So here's your gooey morsel of science for the day.
Step 1: Supplies
3 cans of glow spray paint
and a BRIGHT light source
camera flash (with remote)
spray paint gun
some thumb tacks or mounts to hold up sheet
Step 2: Painting
It's hard to see what you are painting because the paint is a very light green color. This of course led to blotches in my paint job unfortunately. In a dark room where you can keep checking your work would be ideal (like a dark garage or even my porch at night), but I did not have that at the time. The sheet was sort of broken down in to creased sections due to the folding. So I just painted by section until it was done by dividing it in to 4 squares. Once done, give it some time to dry. Since you are spraying on cloth, it drys pretty quick (about 30 minutes was more than enough). Once dried, it will be a little crusty but still foldable. I doubt you'll get it folded back to how it came in the package, but you can fold it for whatever works for you.
Step 3: Using the glow wall
Have the "user" make a pose right up against the wall. You want them right on it (literally touching) so they get as little light leaking behind them as possible. I was using my flash off camera and right up on the glow screen. It was just set to Manual mode full power (1/1). If you use a flash, don't use it in Auto mode if you can help it. For this, you don't need to care about proper exposure, you just want all the light you can get. Once they are ready, have them close their eyes and fire the flash (or whatever light source). Closing the eyes is important as well for the user. Since it will be dark when using this, you don't want the light to dilate their eyes. If it does, it will make it harder for them to see what they just made! I know from experience.
Testing mine, you could do a shot about every minute for the best results. The low hold time for the glow really helps with this. You can take shots back to back without waiting, but you get some silhouette bleed over if you don't let the glow die down fully (see examples).Above are some examples taken a few seconds after I set off the flash in a pose. I have the wireless remote in my hand for all of these shots. I had to run back to the camera each time, only about the first 2 seconds are the brightest. So these pictures don't do it too much justice. These are 2 second exposures. Overall I had a lot of fun playing with this.