Ask HN: Any Black Friday deals offered by YC-backed startups?

Since it's Black Friday, let's do a roundup of what YC-backed startups are offering today. Any good deals around?

Given the relatively few amount of YC startups who sell physical consumer goods, it might be a better idea to make this thread come Cyber Monday.

Automatic is a Y Combinator company and their Internet-connected car gadget is on sale this weekend. https://www.automatic.com/

Very nice! I'm going to get one.