Nimuno Loops are rolls of Lego-compatible adhesive tape. Genius idea and no surprise that they've blown wayyyyyy past their Indiegogo goal to manufacture the stuff.
Imagine being able to build around corners, on curved surfaces, or even onto the sides of that sailing ship you've just spent hours building. You forgot to engineer a point of attachment for that sweet dinosaur-smashing cannon? No problem. Snip a length of Nimuno Loops, stick it on the hull, mount your cannon and be on yarr way.
"LEGO Compatible Adhesive Tape - Nimuno Loops" (Indiegogo)