Hello all,
Just a quick review on a product I tried recently - the 20mm self adhesive magnetic bases from www.magneticdisplays.co.uk
They are the perfect size to fit in the indent of a Dust Tactics base (the magnet is only .55mm thick) and strong enough to hold a figure upside down (not that I would recommend this of course :-) ) Once the figures are magnetised it makes storing/carrying the figures a lot easier - I use a multi shelf metal toolbox, but the same site also sells "steel paper" allowing you to make anything useable.
They are £2 for 20 of the discs. I am not affiliated with the company but would highly recommend them for a quick and effective magnetic solution.
Cheers