What about a small 'Ferrero Rocher' box spray painted on the inside? In groovy colours of course. In fact you could brush paint it, the smooth plastic box will give the posh finish. This one
http://designermagazine.tripod.com/F...yramidPIC1.jpg looks cool and you can eat the contents too.
Apologies for 'groovy' and 'cool', should be 'well snazzy' and 'hip'.