"Where to purchase Daniel Tiger trolley fabric," you users-of-Google ask? Well, as of today, you can order this red trolley on blue background fabric at my Spoonflower shop!
I assume that many of you would like to make Daniel Tiger pajamas, much like he wears on Daniel Tiger's Neighborhood. I've made a fabric design that closely resembles the print on his pajamas, without being an exact copy. Until The Fred Rogers Company decides to license its own line of Daniel Tiger pajamas, I'm pretty sure this is as close to what you're looking for as you'll ever find.
8x8 swatch sample from www.spoonflower.com/fabric/1853605
Needless to say, if you've ordered the fabric and made pajamas (or anything else) out of it, please feel free to contact me! I'll gladly add pictures of your projects to this post.
And finally, for those who may have missed it, be sure to check out my tutorial on how to make a Mister Rogers cardigan for a Daniel Tiger fan.