Here's my jar (a little late because I had to drink the coffee that was in here first).
I re-used some of the flowers and hessian from my spring-wreath kit, and added some cool twine and natural ribbon, using hot glue to attach it all. I couldn't go completely girly, being the only girl in the house, but I'm hoping it's a balance of styles for all of us.
I have a couple of Spring-wreath kits available, if you are interested in making a wreath, or in using your hand-made flowers for some other project.
Is a Thankful Jar something that would work for you too?