window hook for decoration

A window hook for decoration, like this heart on the photo.
Above you can see why i have made this. The hook fits under the seal.
There is no need of glue, nails or screws.

Update: I have uploaded a heavy duty version of my hook, wich can hold a lot. We had them holding laterns in front of the window. If I can find a picture, i will upload it.

Update: https://www.thingiverse.com/thing:3975779