
A puppy party theme is a perfect party for a combined boy/girl party. Depending on the ages of your child depends a lot on if they want to invite the opposite sex to their birthday party. What I found is in their early years they want all their friends invited. Late elementary school years they decide they don't want the opposite sex at their birthday party; then in the middle school/high school years they decide they want them back again : ) Of course, every child is different. This is a great theme for a first birthday "paw"ty. Check into hiring an agency that will bring puppies to your party (kind of like a petting zoo but with puppies). Most children adore puppies – you'll be sure to hear lots of oohhs and aahhs!
Puppy Party Table Decor: I purchased stainless dog bowls from the dollar store perfect for serving ice cream and cake!
Dog bone cups are a must for a puppy party; when will you ever get to use bone cups at a party?
Dog Invitations are very important - they set the mood for a party! We all know that first impressions can make or break you - the same goes with an invitation. It's the first thing someone sees when invited to a party, so it's important to make the invitations as nice as possible. I made this invitation at home with striped card stock purchased at Kinko/Fed Ex. Use a word program to insert puppy dog clip art onto a blank document. Type the wording and party details into the text box above the graphic and print.
Cake and cupcakes from here. Puppy Party Theme - Food/Cake: If possible, have your cake or cupcakes match your party decor. Fun food to serve is a "dog bone" sandwich - cutout peanut butter and jelly sandwiches with a dog bone shaped cookie cutter (purchased at wal-mart or craft store).
Dog Party Games: Put the Dog in the Dog House Game: This game is a take-off on "pin the tail on the donkey" and was made with clip art and printed at Kinko's on a 3'x 2' vinyl. I purchased little card stock puppies (scrapbook store) and laminated them with clear contact paper. The kids loved this game!
Dog Trainer Says is another party game and is a variation of "Simon Says". Play this game like “Simon Says” and have the kids do dog tricks like: Sit, Stay, Rollover, Jump, Growl, Hide, Back-up, Play Dead, Bark, Turn around, etc.
More puppy party ideas for kids:

Face painting is always fun for little kids.

Whimsy-girl constructed a
dog house out of a cardboard box - so cute with the roof shingles!

She also passed out sugar cookies (dog bone shaped) for the adult guests. More photos
here.

This
Fire Hydrant
would make a great table decor item for a dog party.
Darling
puppy theme cupcakes.
Puppy invitation Puppy invitation wording ideas.... On the invitation: Ask guests to "Join us for puppy chow and a howlin' good time!" The who, what, when, where can be - Come! Stay! Rollover! and best of all, "ARF" RSVP.

Directions to make easy dalmation dog ears
hat. 
Print your own puppy origami for
free. 
Instructions on how to make these cute puppy cake pops
here.