If you are not familiar with this collection, what they offer are a combination of designed images which fit into frames that can be interchanged. You do need to purchase a different handle for the different shapes and sizes of their stamps. On each of the kit covers at the top left corner, they will state the handle size that you need. The back of each stamp has an interlocking ribbed grid surface which locks into their handles. Be aware that this system will not allow you to use the stamps with just an acrylic block for the above mentioned reason.
The sample below was made with Backyard Birds. Note that this is the only Christmas bird in the set, and the rest can be used year round. The interchangeable pieces to these sets lead to a multitude of possibilities. The Merry Christmas is from Stampabilities and the tiny pine bough is from Art Impressions (cling $4.95). I really like this tiny bough for creating bigger branches. I used the Clear Sparkle pen from Sakura to colour the outside ribbon on the largest frame and trimmed the ribbon frame with scissors.