$BABL When you find an item you like, online or in a traditional store, you simply post basic details about it on Buildablock and share the information on social media. We call that a 'Wink.' Other people with the same interest as you can join the Wink to form a buyer group. Once a certain number of buyers have joined the Wink, Buildablock opens a negotiation with the merchant to win a substantial discount for everyone in the group.