I think the customer much prefers the cupsas they fit nicely in the car's cup holder. However, if you are looking for a new look, try A-roo foral packaging.

Here is a link that might be useful: A-roo Foral Packaging

I've loved the idea of covered cups as the bouquet containers ever since reading about it yrs ago on this site, but have a hard time finding the older style ones without the sipping "spout." I've tried BJ's and Sam's and looked online. I've even tried to collect them from convenience stores by having friends take 2 when they get a large beverage :) But those always have adverts on them. Can anyone direct me to their supplier?

Online source for plastic cuos

Here is a link that might be useful: Online Plastic Cups and Lids

I think I am the one who originally thought of the cups for "to go" bouquets. Really cool to see it still being talked about here :-).
We used to get these at Costco but it has become hard to find cups and lids that match each other in the size we prefer. I like the 20 oz, I think my business partner likes the 16 oz better but with a wide lid. She recently found cups and lids that match on Amazon and had them shipped to her home for about the same price we payed at Costco.