If you're using UPS air service, it is really expensive for a few items, but if you build up your pile of loot with a lot (15-30 figures/items) economy of scale takes over and it works out very cheap for postage. my last shipment was about $6 per item. I had a lot of deluxes. :o
they calculate it along the lines of a base amount plus about $4 per pound. their weight estimates are a bit generous though.
If you're only going to ship 5 items it's going to be expensive either way.