Yes! Simply multiply your $29 pledge by any quantity of posters you'd like!
2 posters for $58.
3 posters for $87.
10 posters for $290. etc.
Shipping in the US is free, so you're all set! International backers, simply add your shipping fee to the total, and I will be able to figure out the details on my end! No worries.
These posters make great gifts, so grab one for a friend or family member who likes space!