I have been asked by a few people about shipping charges to Europe. Unfortunately the tubs will not fit in the flat rate envelopes. The smallest flat rate packaging I can get the tubs in to is a medium flat rate box, which holds up to 6 tubs. Shipping costs to Europe and the UK is $43.45 USD, which has a delivery time of 6 to 10 days.
First class shipping varies in cost but is a lot cheaper. But there is no guarantee on delivery time. From past experience this can take more than a month to arrive since it shipped by boat rather than by air.