It's dangerous to bathe alone! Print this. Gives +3 to FUN and +5 to BUBBLES.
Here is partly customizeable....customizable..? can be customized? bubble making thing. It's made of a wand and a container to hold the bubbly liquid. You can add your own touch to it by adding your name or gluing any other print on top of the lid (the top face is 37,6mm in diameter, so scale your prints accordingly). It's recommended to edit the .scad with openSCAD as the font support in the Customizer is lacking.
Update: The design was simplified and the lid can now be printed in two different orientation depending if it's just the blank one or if it has something attached (in Meshmixer) on top. A 45 degree chamfer was also added to better seal the container and lid and a fillet was added to the bottom of the bottom for a smaller overhang.
Check out my other designs here: https://www.thingiverse.com/Superbeasti/designs
das Filament PLA/PETG
Metal Blue/Grass Green
The wand is recommended to be printed on a raft.
The lid and the bottle have enough clearance to screw together easily but also be water tight. If, on the other hand, your printer produces strings or blobs, you might want to clean the threads by sanding etc.