I'd love to have a buttonhole pin...

[Arlen]

Once my moustache finally thickens up a bit I plan to do all kinds of things with it.
I'm planning to just switch facial hair design every month or two.

[Chas]

You might try a florist. The kind that makes the bits and pieces for weddings.

I have been to many weddings where the buttonhole flowers were in a holder. Similar the the ones pictured, but made of a see through plastic (PTFE or Nylon or or or something else) They are designed to be pinned on or have stitch holes or safety pins incorporated into the design.

I have seen some that have a thin latex membrane to keep the water inside. They are not designed for years of use, but I am sure that I could make one last for a year. They can only cost a few pence/cents each.

Regards

Chas

[starbkjrus]

Once my moustache finally thickens up a bit I plan to do all kinds of things with it.
I'm planning to just switch facial hair design every month or two.

I see lessons from le tremende coming up for you soon.