In fact, I asked my roommate to pull the clasped strip from my wrist and she wasn't able to do that without scissors. She's also 20-something years my senior. I was able to free myself from the band, but, it wasn't easy.
Last year, I used something similar to this for Trick-or-Treating kids at a church function and it worked perfectly. These probably would too. They would work well for any function which requires identification.
They're pretty affordable for 200 bands too. They are $7.25. Availabe
Vital Link: Amazon