I went and bought by pins yesterday at Michaels and wanted to let you know what I found because it took awhile to find them.
There were pins in 3 different sections of the store. First was the wedding section. My store had coursage pins with round pearls and oval pearls. So I chose the round and went to ask a sales person if they sold them with out pearls. She took me to the sewing/quilting section. They had pretty much the same pins there for $2 less a package than wedding. They also had pins with different color pearls. Both wedding and sewing were 1 5/8". Then I went to jewelery and I found the pins with a plain top in gold, grey, and bronze. Those pins were 2" in length.
Hope this helps someone!