Something like a year ago I was playing around with making insertable locking pins in Tinkercad and made up this little star.

It worked, but I was never super thrilled with it. Friend asked if he could have some to hand out, so I re-drew it in Fusion and made the base a lot fancier this time around. Whole thing prints with three color swaps.

Prints as two parts on one plate by object - first the star (yellow and black recommended), then the base. The base was designed to look overly fancy, so I used Bambu Iridium Gold Metallic for the bottom band and Hatchbox Wood Brown for the top.

Line it up and insert the pins straight down in to the holes. It'll lock in place and is solid enough for a little display piece. Pinch above the pins and pull straight up (a little at a time on each side) and it'll come back out. You can ignore the little arrow on the bottom, the base is actually reversible.

If you want to change the colors, everything can be addressed by-object in Studio.