Couldn't find one which fit the 240EB so here's a quick and dirty one. Friction fits close enough to stay in place and only contacts the printed part in small areas too keep cooling from being impaired.
Use something other than PLA since the AC adapter gets pretty hot.
This adapter came with my 2021 G173QR but the AC adapter is certainly used with Asus' other laptops.
The author hasn't provided the model origin yet.