Here's a quick little DIY you can make in about fifteen minutes or less. I repurposed 4 cardboard corners and decorated them with some washi tape and dollar store alphabet stickers. As usual, I've had these photo frame cardboard corners in my scrap box for a while before I discovered what I can do with them.
The four corners fit into each other quite nicely like a puzzle, but one simple enough for my five-year-old niece Zara to solve. Plus, since the puzzle forms a box, I decided to store a little surpirse in it for her!
I added the alphabet stickers so she can disassemble the puzzle and spell her name.
Check out the photo tutorial if you'd like to see how I made this quick but ingenious little DIY!
P/S: I also made a trinket box for my little niece Dina with a used plastic box. Here it is:

