|The following is based on Fallout 2 cut content and has not been confirmed by canon sources.|
A premium bottle of shampoo. Unlike other leading brands, this shampoo comes in an unusual flexi-plastic bottle. It was specially designed this way, so when the bottle was squeezed, the right amount of shampoo was poured out - no more, no less. Just a flip of the cap, and you're on your way.
The bottle of shampoo was to appear in Fallout 2, but it was cut before the game was finalized.