2025 Theme challenges

For carving stamps I like theme challenges. Last year I hosted a few stamp carving swaps that were connected to those challenges. Now I'm looking for challenges for 2025. Which ones did you come across? Do you know anyone who regularly hosts a theme challenge that might also be suitable for carving stamps?

Please write into the comments of this swap about the challenges you know about. If possible please add the link to the challenge or to the originator of that challenge.

Feel free to host a swap that's connected to one of the challenges that are mentioned.

For participating in this swap:

Send some kind of Mail Art to one partner. For creating that Mail Art please use at least one handcarved rubber stamp that you carved in 2025. Your Mail Art could be a Postcard, ATC, decorated envelope, artistamp, booklet, sticker, notepage, ... You may combine that stamp with whatever other media you like. You don't have to contribute a theme challenge into the comments in order to participate in this swap.

List of challenges:

These are the theme challenges I know about:

October: Inktober (drawing challenge, some people use it for carving.)

December: Carvedecember Instagram:myartpracticecommunity

Theses people sometimes host (carving) challenges:

Instagram: Millie.Ann

Instagram: Pinkeraserart

(Swap image shows the stamps I carved for two carving challenges in December 2024)

Group moderators: Please let me know if you don't like this swap being here all year long, then I will remove it from the list.