DIY Ninja Valentine Card Box

2 min read September 13, 2026 Jamie Bare
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This cool Ninja Valentine Card Box is sure to be a hit this Valentine's Day! Kids will get a "KICK" out of the huge box size, and clever Ninja design. Mom's will love how easy this DIY Valentine card box idea is to create with just a few items. The Big Graduate Card Box is a fun base for the Ninja Box. Just add red paper, black ribbon, and Foam Shapes and Foam Swords! Each step is easy and kids will love the final outcome! Be sure to download the Free Ninja Printable Template here!

Project Time
30 to 40 min
Difficulty
Beginner
Step
1

Begin the Ninja Box by gluing 12 x 12 red pieces of cards stock to the sides and top of the huge white Graduate Card box.

DIY Ninja Valentine Card Box step 1 part 1
DIY Ninja Valentine Card Box step 1 part 2
Step
2

Cut a hole in the red piece of cardstock that matches the card opening on the top. This will allow classmates to deliver their Valentine cards into the big Ninja box.

DIY Ninja Valentine Card Box step 2
Step
3

Download the Free Ninja Printable Template here to make the Ninja mask. Using the template, trace onto foam sheets and cut out a black mask and a white ninja face. Cut out two circles and two thin rectangles from Black Foam Sheets to make eyes and eyebrows for the Ninja.

DIY Ninja Valentine Card Box step 3 part 1
DIY Ninja Valentine Card Box step 3 part 2
DIY Ninja Valentine Card Box step 3 part 3
Step
4

Add the ninja face to the top front of the Ninja Valentine Box.

DIY Ninja Valentine Card Box step 4
Step
5

Wrap Black Ribbon around the lower part of the box. This will create a black belt for the Ninja. Tie and cut to leave a little sash on the belt.

DIY Ninja Valentine Card Box step 5
Step
6

Glue two Foam Swords on the side of the Ninja Box. For a pop of red, wrap the handles of the sword in thin red ribbon. This will add an extra fun kick to the box!!

Need some more Valentine card box ideas for boys? Check out all of our favorite card boxes for boys of all ages here.

DIY Ninja Valentine Card Box step 6 part 1
DIY Ninja Valentine Card Box step 6 part 2
DIY Ninja Valentine Card Box step 6 part 3

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