my writing this week(week 1)

I can be different colours. I am at some shops. WHAT AM I????? This is a good piece of writing because it is a good riddle & a great haiku. You have have followed structure very well. This is a bad piece of writing because it is a bit short. That is a good point, but most haiku's are like this one.

can you guess what i am? type it in the comments