What are the names of the 3 My Little Ponies that came with the Crystal Rainbow Castle?

Some of the Crystal Rainbow Castles came with three free bonus ponies, and we can’t figure out the names! They were sold at Wal-Mart.
They have pictures of 1) a crown on a pillow, 2) a frog prince, and 3) a princess crown.

Honeydew Hum, Meadow Moon & Azalea Bloom

Rainbow Crystal
Rainbow Crystal
Rainbow Crystal