hello,
Stickbär has some nice one in the serie Buchverhüllerei and ginihouse has a little one in 3 variations incl. a pdf to print a little book to put it inside.
greetins, ansalu
try moosbstitchin, she has quite a few different sizes etc
the MBS are so simple to sew out once all is prepared. if you do them blank then they can actually be completed inside ten minutes. the hard part is understandin how they are turned, but once mastered they are fast and easy