I made the flowers from scraps, cut out the leaves from the 'spare' shirt, and added assorted bits of trim and beads I'd collected in Spotlight's oddment packages. Louise, I think some of your leftover lace and trim made their way onto the shirt, too.
Here I am wearing it... I *love* it. I would never have chosen yellow but I like how it turned out, so I'm glad those two yellow shirts caught my eye in the clearance :) A very good experiment, I think!
Total cost: $3. And I have plenty of knit fabric left to play with!