The Emoticarolers will sing any song you want to write, as long as it can be put to a Christmas tune. You have to hear this one!

Tell someone whether they're on the "naughty" or "nice" list with the appropriately-named Naughty or Nice. I made one for Scaramouch and one for myself. Disappointingly, the recipient's name appears nowhere, just the email address (which is mine). Still, the host is creepily funny. (Thanks, Dee!)

Be Claus lets you upload your face and grow a Santa Claus beard. You can even choose your beard style! Not all that astonishing, but the kids liked it. Take a look at mine as an example. (Thanks, Actor212!)

Put your name on a tattoo and see Santa Claus wear it. Arm, chest, or tramp stamp available. See mine here.

Turn yourself into a Dancing Santa. Take a look at mine. (Thanks, Roman!)

Insert your dog or cat into a Christmas greeting at Critter Carols. You'll find my daughter's cat Biscuit in this animation. Embedding is autoplay. Can be annoying.

If you're into cheerleaders (or even if you're not), you can stick everyone's face onto a group and send out holiday greetings at Holiday Cheer. Three cheers, five cheerleaders, and several backgrounds to select from. Here's my family. (via the Presurfer)