I like to search the clearance racks at the end of a season. It saves so much money to buy kids clothes a year ahead. I bought several t-shirts for $1, but they were pretty boring, so I livened them up a little.
I made three yo-yos and sewed around the edge of the circle to attach them to the shirt. Then I did some quick embroidery to look like vines running between the flowers. Perfect for spring! Now if only the weather would get the hint.
If you need a yo-yo tutorial, there's a great one here.
This shirt has so many possibilities. Here is one with two yo-yos and some leaves on a white t-shirt. I got the idea several years ago from an etsy shop that is no longer in business. I love the possibilities!