Hi Parents!
When I was a kid, I always wanted to make my own perfume and would usually just end up with a slimy mashed flower mix. Here is a really nice tutorial from Meri Cherry using flowers, herbs, and citrus fruits (and glitter!) https://mericherry.com/2017/03/28/making-perfume-with-kids/
Here is one from Kids World that uses herbs and an Jojoba oil base: https://www.kidzworld.com/article/27822-make-your-own-perfume/
While you’re at it, here is a very simple fun soap recipe, using glycerin, scented oil, and a mold. You can put a toy inside to make it super cute for kids or gifts: