Paper cup (I used one of those big yogurt containers)
Cover pot with paper using tape. Cut out flower shapes. Depending on the age of your toddler you can do this before hand or let them help. Use stickers to decorate pot and flowers have your child help you tape straws on the back. Then put them in the pot.
This didn't take us long to put together but M* has spent tons of time taking the flours out of the pot and putting them back in. I think maybe next time we sit down to do something crafty we'll make some "bugs" to tape to straws and add them in. Also, we pulled out pipe cleaner to wrap around he straws but M* wasn't interested but maybe your child will be.