I'm sorry for taking so long to respond! When make a topper this size, I used a pourous styrofoam ball (cut in half) - not the white styrofoam that's smooth - the type with lots of holes in it. I make all my smaller flowers/buds/leaves on 26 or 28 gauge wire, then group them together with floral wire when I get ready to use them. Then at the end of each "bunch", I use either a toothpick, 18gauge wire, skewer cut to size - - and floral tape to the end of the bunch - this end I will stick into the styrofoam. For me, using the smaller gauge wire to build the smaller flowers on, results in less bulk when bunching the flowers together for placement into the styrofoam ball - also give the flowers a little more "play" to move around. Does this help? I'd be happy to try and clarify a bit more if you want.