Water marbling its such a fun idea it was kinda hard for me to do it so im ganna tell you the steps :)
Materials: cup or bowl (make sure your aloud to get it dirty),
3 or more nail polishes,toothpicks,room temperature water,tape,nail polish removal,cotton balls.
Step 1: Pour the room temperature water into a bowl or cup
Step 2: Take your nail polishes and drip it in the water make sure to go fast drip one then drip the other color keep going
Step 3: Take your toothpick and make a design in the water
Step 4: Tape around your nail
Step 5: Put your nail faced down in the water where you think is a good design keep the process going all the way
Step 6: Make sure nails are all dry then take the tape off
Step 7: Clean around with nail polish removal
TIPS- MAKE SURE THE WATER IS ROOM TEMPERATURE IF ITS COLD IT MIGHT STICK TO THE CUP AND WONT WORK.
MAKE SURE YOU GO FAST WITH DRIPPING THE NAIL POLISHES CAUSE THEY MIGHT DRY.