From Ed Felten's "Freedom to Tinker" site, regarding the TinkleToonz Musical Potty.:
This handy toilet training aid offers a "magical, musical land of potty training," by playing a tune whenever liquid is deposited in it. Since it plays digital audio, it qualifies for regulation as a "digital media device" under the Hollings CBDTPA. If the CBDTPA passes, any newly manufactured TinkleToonz Musical Potties will have to incorporate government-approved copy protection technology.