Looking for suggestions to small Lego giveaway gifts

Hello Lego enthusiasts. We are a datacenter company based in Norway/Denmark, looking into creating small/funny easy to build lego giveaway gifts that can be dealt out on trade fairs and other gatherings where we meet customers/vendors/public etc. We want to create, with genuine lego ofcourse, small sets like $5-10 worth of lego, with maybe custom prints (like logo or QR code) to stand out from the typical buff/pen/sticker giveaway on stands. What have you recieved in lego as a giveaway from a...