How to Get the Museum Shop?

[RoughInTheDiamond]

I've donated 50+ items, at least 1 in each exhibit, to the museum. Is there anything else I need to do?
When will Blathers finally suggest it :'D

 

[Yui Z]

I think you'll get the suggestion tomorrow possibly? Keep checking back at the museum and when you see Blathers thinking then he'll be ready to suggest it.