Let's Build a Wild Bee Hotel

Wild bees are amazing, if you want to follow their life journey, make a lovely hotel for them! :)
.. or buy one, here are some that have the needed depth..
affiliate links:
1) amzn.to/3VHKGf6
2) amzn.to/3TYpQqo
3) amzn.to/4aBfC4J
and here are all of them - amzn.to/3J0VwFm