More than likely if you stand in the standby queue at Toy Story Midway Mania, you're going to be waiting for a while due to the immense popularity of this attraction. The good thing about that is you'll have plenty of time to notice the details Imagineers included in the queue area. If you pay careful attention to the various structures throughout the queue, you may noticea fun little detail.
As you walk through the queue, you'll see various things Andy has made for his toys. Because he's a young boy, kids his age aren't exactly the best construction workers you've ever seen so Andy has come up with some creative ways to accomplish his goals. To keep some of his structures in place, Andy has used pink and blue blobs at the corners to hold it all together.
Imagineers meant for these blobs to represent Play-Doh and Silly Putty, which are things most kids have and routinely use when they play with other toys. In the ride portion, you can see a can of Play-Doh to the side as well (sorry, no photo available).