U.S. shipping is baked into the pledge costs. These little guys are basically $2/humanoid and $3/Airskiff-Dragon, plus shipping, with some discounting going on as quantities go up and to keep the pledges at whole dollar amounts. (So instead of $14.26 or whatever it was precisely, we just drop it to $14.)
Shipping outside of the U.S. is unfortunately much more expensive, which means that if you're outside of the U.S., you'll see a bit extra added when you pledge to cover this extra cost.
Shipping is the second most expensive part of the project, just after model production. It's more costly than the mold production. It's really quite crazy, but we're stuck with it, sorry!