Unless you get your tiny whoop pre-built from tinywhoop.com, it's probably not reinforced in a few very important places. The struts that hold the motor mount to the ducts are a common breaking point on this airframe. After trying a LOT of different glues, we've found one that works GREAT! It's Welder industrial strength adhesive. With this little one-time applicator bottle I found repair is super easy. The bad news is that you'll have to set the Tiny Whoop on the shelf for 12 hours to let this stuff dry. The good news is that it will be very, very strong.
Don't dump all of your welder into this little applicator bottle! it's only good for one use. After that the glue in the bottle will slowley dry. All the glue in the metal welder tube will be good indefinitely.