Not-quite-another option

christiania_light, originally uploaded by melanthius18.

Yesterday at the PSU farmer's market I spotted a cool cargo bike that I hadn't seen before. It's a Christiania Lite set up for kid transportation, but as far as I can tell they aren't available Stateside except by importing one yourself. The box was a cozy little kid-nest, full of blankets and toys.

This caught my eye because we're also building our cargo bike with an eye towards child-hauling: our first should arrive in December.