Craftoff2
If you’re in SF, Craft Gym (1452 Bush Street, b/t Polk and Van Ness, San Francisco) is holding their 2nd Craft-Off competition.
Jackie of Craft Gym writes:

Join us for an evening of crafting and creative ingenuity as we reveal a “secret ingredient” and set teams of participants into a 30-minute DIY battle. A random assortment of craft supplies and tools will be available for teams to use in the creation of their creative masterpieces. Prizes will be awarded to the winning team, who will be determined by popular vote. Spectators are welcome and refreshments will be provided.
$5 suggested donation
This Friday, 11/16
Open house begins at 6pm
Craft-off begins at 7pm
Revelry to follow

Teams will consist of 5 participants. Teams can be created on Friday, or you can rsvp to save a slot for your diy team. Link.