What do you do if orbeez go down the drain?

If Orbeez go down the drain, the first step is to stop any water flow to prevent further movement. You can try using a wet/dry vacuum to suction them out if they are still wet. If they have dried and expanded, you might need to remove the drain cover and use a Plumbing snake or a similar tool to dislodge them. If the blockage persists, consider calling a plumber for assistance.