Ugga Mugga Tee.
Any other parents have a kid(s) who are crazy about Daniel Tiger?
D.Tiger, as she calls it, is our daughters absolute favorite. We sing all the songs throughout the day and always say "Ugga Mugga", which for those who don't know...means I love you.
These are available on unisex sized Gildan tshirts, sizes toddler to adult, in a variety of colors. Toddler size shirts are on Gildan Soft Style brand.
I use professional grade heat transfer vinyl and it is secured using an industrial heat press. While ordering you will have a choice of shirt color as well as vinyl color. That way it can be customized just the way you'd like.