Toto, makers of the self-cleansing super toilet, the Neorest, doesn't want anyone to feel less than bidet-fresh, even when on-the-go. The Travel Washlet, available in pink or blue, just needs to be filled with warm water in order to provide "personal cleansing" in either regular or "soft and gentle" modes.
The video demo is so coy, I thought for a moment I was mistaken and that the Washlet was actually for cleaning public toilet seats before using them.
$128 at Toto dealers.