Home » Theme Cake Decorating Ideas » 21st Birthday Cakes

Coolest Homemade 21st Birthday Cakes

Take a look at these cool homemade 21st birthday cakes shared with us by cake decorators from around the world. Along with the birthday cakes here, you’ll also find loads DIY birthday cake-making ideas and how-to tips to inspire your next birthday cake project. Enjoy!

And don’t forget… if you end up with a cool cake, have great tips to share or pictures of awesome birthday cakes you’ve made in the past, share them here and be a part of our coolest birthday cake community.


Latest 21st Birthday Cakes



Coolest Cake Decorating Contest - Share and Win

Featured Cakes

Cake by Candy C., Joliet, IL

Coolest 21st Birthday Cakes

I searched many sites for 21st birthday cakes and this is what I made. I made three 12″ cakes stacked and two 8″ cakes stacked both cut at an angle to give the slanted look. Cut out a section of the bottom cake to fit the top cake in. Covered with pink MM fondant then stacked atop one another. Stars made the night before and attached to drink sticks. I bought the bottle from the local grocer.

Cake by Cathy W., San Jose, CA

21st Birthday Cakes

I tried to think of ideas for 21st birthday cakes and came up with this one. I started with two round tiers, a 12-inch and a 10-inch. I used two edible images – photos of the birthday girl as a baby and a recent photo, and wrote ‘From Bottles to Bottles Happy Birthday Shannon’ on the top, decorating it with small plastic baby bottles and martini glasses.

I visited a large liquor store chain and purchased 24 actual little liquor bottles and glued dowels to the back of each and stuck them around the top tier, using the bottom tier as a ledge. The lower edge of the bottom tier is simply decorated with colorful curling ribbon.