Shipping To Canada/Customs rules?

I've got a friend in Halifax, NS who's a big fan of HBO's TRUE BLOOD thanks to me . I was looking online today, and I saw that they've created a TruBlood beverage knockoff for sale.

I was going to have her order a four-pack and send me two, and then I'd pay her for it via PP. I thought it'd be easier sending it directly to her, rather than having me fumble with packaging and all that. However, shipping to Canada is $25.95 US compared to it being $10 cheaper shipping it to me instead.

What's the best course of action? Could I save money by having it sent to me, and then mailing her her half, or is it going to be about the same either way?

And what're Customs' rules for marking an item as a gift, what does that guarantee, if anything?

Thanks all.

http://store.hbo.com/detail.php?p=10...ows_true-blood