Glow Bubbles
Materials
Large bottle of bubble solution (we like this one, use only part of it)
2 highlighters (these Sharpie highlighters work well)
Pliers or wire cutters
Directions
Wiggle off the end of the highlighter with a pair of pliers
Extract the ink tube
Drop the tube in your bottle of bubbles (for larger bottles, use two tubes)
Replace the cap and you shake a bit. Wait a few hours (a day is even better) for the ink to release
adapted from Paging Super Mom