cbyron2003 wrote:try using another coin with an attractive property to unlock
some 1p and 2p coins(usually shiny ones) should be ok.
Yes and if I remember the post-1992 coins are the most, erm, useful in this respect due to a handy added impurity.
In fact, when my coin unique is ready for a performance and not in it's little bag (which it should be all of the time. Don't learn the hard way), then I keep it next to one of these attractive little beauties so that I can locate it easily, by touch, amongst the other change in my pocket.
I hope that makes sense.