london based designer peter crnokrak has created 'the thermochromatic toilet seat' which
he designed to solve a common problem: 'being able to identify a public toilet seat that has
just been sat upon (and is thus still warm) is of particular concern to a significant number
of the population. without warning, one can easily sit upon a seat and be instantly repulsed by
the trace evidence of a previous user.  the object retains the heat memory of a previous user
and displays it as a visual marker for the next user to assess.' a project which demonstrates
a fine balance of humor and practicality.



via canadian design resource