From this 1 quart metal tea pot you pour up to 20 drinks. Each one is a DIFFERENT color! You then remove the lid from the pot and remove silks and streamers. The colored drinks are poured back in the kettle. You pour from the kettle again and this time only clear water comes out. Originated by U.F. Grant.
Well made, looks modern and 'normal' - just what you need. I use it straight out of the box. (I only do a few colors, I couldn't name 20). Instructions gives other ideas besides the straight plot.