Donations in various currencies in a box in <a href="https://en.wikipedia.org/wiki/Heathrow_Terminal_3" class="extiw" title="w:Heathrow Terminal 3">Heathrow Terminal 3</a>. The box says "Please donate Your leftover currency" and "Supporting the lives of communities near Heathrow".
<a href="//commons.wikimedia.org/wiki/User:Mx._Granger" title="User:Mx. Granger">Mx. Granger</a>
<span class="int-own-work" lang="en">Own work</span>