Attitude's seeds do come in either breeders packs, or re-packed. It's a selectable option when you checkout your shopping cart. I like breeders packs, there's some wicked cool ones, namely Reserva Privada seeds (glass vials nestled into a little book about the strain) and G13's Pineapple Express (Big tin, cool logoing and embossing). Nirvana's seeds (whether purchased through Attitude or not) can also be repacked, but their packaging is pretty lame, just a normal seed packet looks like corn or lettuce seeds.
Re-packing them would certainly be a lot easier to get past customs on a gentle inspection, but if they see 100 seeds in 10 packages of different types they'd be like "hey that's pot!"
Their new special they just emailed me sucked.................... A bunch of weird no name seeds...............