NEW: There are new versions!
Summer Bubble Wands: https://www.thingiverse.com/thing:3021495
Amazing Bubble Wands: https://www.thingiverse.com/thing:893814
These bubble wands are improved versions of the previous Amazing Bubble Wands! They are larger and thicker for durability. Also, I've added a new set: the Sports set!
Honestly, it doesn't matter the resolution or the infill used. I just used the default that my slicer used. These are made to be a hassle-free print, so anything is fine.
Sometimes, there will be a bit of stringing left over from the print, and you do need to clean that up, because it may pop your bubbles before you blow them. I just used a sander the shape of a pen and a finishing tool that has a hot end to clean it up.