Tengu,
You're the only person that I've encountered that probably has more unusual / unusable cr@p in their cupboards and shed than me.
You're unlucky in this instance, as all of the old, odd sized plasters that I had, and thought that I would never use, my five year old son has managed to find a use for them with all of his real and imagined bumps and scrapes.
Cheers, Michael.