On the day of the Scottish referendum: Nessie!
I bought these push pins from Tesco in July 2014. They were on offer – I think Tesco was trying to get rid of their SUCK UK products to make space for their own products. I only paid £3 (~$4.90; €3.80). The official price seems to be £7.50.
These push pins are designed by Duncan Shotton, the creator of the rainbow pencils.
I don’t have a notice board any more, so I’m not sure yet how to use these funny push pins.
You can also get mole pins (see photos) and disguise pins (which contain sunglasses, hats and moustaches).
Price: July 2014
Exchange rates: September 2014