I started off with an inexpensive grape-vine wreath. This one I got at Walmart for under $5. I just switch out the different decorations for each month and store them in zip-lock storage bags.
I then went to the craft store and bought 2 boquets of flowers (whatever variety you like). I cut them off of the bunches and left about 2-3 inches of the stems still on the flowers. I then placed them in the grape-vine wreath (weaving the steams into the wreath), and then attached a pre-made bow from the craft store and a little 4-leaf clover ornament also found at the craft store. I'll try and share my new wreaths each month as I make them. I had a really cute one for Valentine's Day, but I'll have to share that one next year.