I was looking at buying a single mini from France, but it seems like the cheapest international parcel price from France I can find on La Poste's website is now fully 25 Euro?! This is possibly the worst postal rate for parcels I've seen anywhere.
I guess you can send things as a letter because the La Poste width limit for letters is 3cm, which is comparatively generous, but the seller doesn't seem to know how to repackage the figure (it comes in a fairly oversized box - I've asked him if he would just repackage it) and so won't.
Yet I see ebay sellers in France with Matchbox cars or other similar toy cars who are charging roughly between 9 EUR and 13 EUR for shipping and these are obviously much larger or heavier than a miniature. They typically list shipping as being by "Colis Internationale Economique", so I'm not sure what service they are using?