My son had his "100 Days of School" celebration. The assignment was to dress up as something from 100 years ago. He decided he wanted to be an old man.
The wig was expensive and complicated. Then I remembered these hair chalk crayons I'd seen online. I thought — what if we just colored his hair gray for the day?
I was nervous at first. The word "chalk" made me think of something dusty and hard to control. But the instructions were simple: drag it across dry hair and blow dry to set. We dampened his hair slightly, ran the gray chalk through, and blow-dried it.
It actually worked. His hair looked genuinely gray from a distance. He was SO proud walking into school. The other kids laughed and complimented him. His teacher asked how we did it.
At the end of the day, I washed it out in the bath. It came out completely with one shampoo. No residue. No staining. No drama.
These aren't just for kids, by the way. My niece used them for a dance competition look. A friend used them at a festival. One wash and it was gone.
They're fun, they're temporary, and they actually deliver what they promise. If you've got a party, a school event, or just a kid who wants to look ridiculous in a good way — this is the tool for the job.