DIY Pop-up Cake Slice Birthday Card

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Hello Everyone!

This is a birthday pop-up card. Inside the card, there is a slice of cake crafted with paper. The cake features two colors and has a single candle on top. The outside of the card is decorated with a piece of paper with `Happy Birthday' written on it and flowers. I have made many birthday cards in the past, and most of them were designed mainly with flowers. I have never made a card with a slice of cake like this. The card is made with colored paper only. Other things needed to make this card are scissors, glue, pencil, ruler and markers. Here is a step-by-step guide on how I made this birthday card.

The first thing I made was a slice of cake. I cut two pieces of orange paper with 10cm and 9cm. I measured and drew lines on the paper as shown. I cut out the unnecessary parts and folded the lines.

I cut the white paper by the same length and width with 10cm. I drew a line in the middle of the paper and measured 4cm on each side of the line. After drawing the lines, I drew wavy lines on each side and cut them. I made a hole in the middle of the paper. This is for inserting the candle.

I glued two pieces of orange paper to the white paper.

For the candle, I cut two pieces of orange paper with 1cm and 4.5cm. I drew white lines on them. I made the flame with yellow paper. Placed the flame between two pieces of orange paper and glued them together. I left about 1cm from the bottom unglued. I added this to the place where I would insert the candle as shown.

In this step, I cut the orange paper with 5cm and 10cm. I folded it in half and folded on both sides with 1cm. I also glued a piece of white paper with wavy lines on the top edge of the paper. Then, attached this paper to the paper made for the cake.

I cut the orange paper with 18 cm, 28 cm and the blue paper with 17 cm, 27 cm. Then glued them together. Next, I drew a circle with a radius of 8 cm on another piece of blue paper. Cut wavy edges around it and glued it on the center of the blue background.

I placed the cake on that circle. First, I applied glue to the two bottom edges of the cake. I aligned the center line of the cake with the center line of the card and glued it down.

On the outer surface of the card, I first glued a piece of light blue paper. Then, I cut another piece of blue paper with 28cm, 18cm and folded it into four equal sections. I gathered the folded sections together and folded them in half. I drew a curved line with a pencil and cut along it. After unfolding the paper, I continued cutting the two edges according to the pattern.

Next, I glued pink paper pieces on the inside surface and the two opening flaps of this blue paper. I trimmed the edges of the pink paper so they were slightly smaller than the blue paper. I drew blue lines on the inner pink piece. I wrote "Happy Birthday" on white paper and cut around the edges. I glued the two text pieces on the inside and outside of the card.

I folded both sides of a piece of pink paper toward the center and glued along the edges. Then, I folded it to match the width of the card and glued both sides together. On top of that, I drew some dots and heart shapes.

For the final step, I made paper flowers, which wasn't very difficult. I made them by drawing flower shapes on blue paper and cutting them out. Then I painted the centers of the flowers.

I glued one flower on the pink paper piece I made earlier and the rest of the flowers on the inside surface of the card.

I am also planning to make a pop-up book filled with lots of flowers. I hope you like this DIY birthday card tutorial. Thank you so much for taking the time to read my post to the end.

asterkame@asterkame
November 13, 2026

DIY Pop-up Cake Slice Birthday Card | Ecency