Start with these.
And here is the result!
I simply attached the paper to the tin using mod podge, then brushed four or five layers over top to seal it, letting the mod podge dry between layers.
Now I can lightly rinse the inside and it will dry without damaging the paper (but don't get it too wet otherwise). I'm considering adding further details: illustrations from damaged copies of favorite books purchased at library booksales, or memorable quotes or verses. For tea identification, I might simply use a removable label on the bottom, or put a slip of paper inside.