On Thu, 03 Dec 2009 09:38:13 +0000, Mike Clarke
wrote:

wrote:

Turns out Maplins also supply these rather than making the Blue Peter
version. http://www.maplin.co.uk/module.aspx?moduleno=37379

Probably not a great idea for most applications but should be fine for
yours.

... except that they come in packs of 4.


There's no law that says you have to use all four!

You could sell the other three on eBay. ;-)