We had these magnets specially made for the do-it-yourself CDROM model airplane engine builders. Heat-resistant up to 80 degrees Celsius. Naturally, there are lots of other uses for these small gold-plated magnets. They hold, for example, 2-3 sheets of A4 paper. For a nice visual effect, use 2 or 4 magnets per sheet. They are very discreet with a height of only 1 mm.
The magnets feature a layer of gold (24K) with a thickness of 0,05 micrometres, applied over the standard Ni-Cu-Ni plating. Gold magnets are suitable for decorative purposes.