You will need:
Cardboard- big enough for the letter size you would like & thick enough to not be wobbly
Hot glue gun
Felt square(s)- I had to use two as my letter was slightly bigger than one.
About 30 little shamrocks/ four leaf clovers from the previous post
The first step is to figure out how big you want your letter, draw it on to the cardboard and cut it out. I didn't take pictures of this step- oops! If you want you can always use your computer to print out a letter and then copy it on to the cardboard, but I just used a pencil and drew it until I liked what I saw and then cut it out. Notice my letter has a few little places missing on it- they just happened to be in box that I used!
Next, you will lay it face down on the felt and then cut around it. I glued it to the felt first and then cut it out, but I think it would be easier to use a sharpie and draw on the felt where you want to cut it- then cut it. Notice that I cut tabs up to the edge of the letter. That will help to make everything nice and flat when you start gluing them down.
Using a hot glue gun, you will glue down all the tabs working your way around the letter. The corners can be cut out so that they will glue down easier:
Here is what it looks like from the front: (Not very pretty and there is one little gap, but it will work!)
Then you will start gluing the shamrocks on to your letter: (A little bit of hot glue goes a long way!)
I placed mine in a random pattern, but they also look nice all facing the same direction. Here it is finished before the frame:
Next, I took a little bit of ribbon, looped it around the letter and duck taped it to the back of the frame. I was glad I taped it, because since a "B" hangs a little bit off center it took a few tries to get it properly centered in the frame. After this step, you can always throw a few staples in there to really hold it in place but it is so light that I doubt you will need them.
Here it is hanging on my door:
And another shot: