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A Yellow Submarine Birthday Party

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  1. Be sure to check out more nautical party ideas here:
  2. Plus, don't miss out on 12 Nautical Birthday Party and Baby Shower Ideas

We love seeing unique party themes like this Yellow Submarine Birthday Party, designed by Andrea Malpass, from Where the Green Grass Grows Designs. Being both a designer and mom to birthday boy Alec, Andrea had a vested interest in making this 5th birthday party a splash. You’ll love diving into the underwater party details. Highlights include yellow submarine invitations, nautical-inspired decorations, a galley of cupcakes, adorable favor boxes, and other sweet treats!


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Andrea invited guests to come aboard the SS-Alec with darling invitations designed to look like a ticket/boarding pass. The yellow, aqua and blue color palette established on the invitation was both vibrant and crisp. Guests were reminded to bring towels and suits since they would definitely be going “overboard” at this swim party!

The colorful dessert and food table were filled with nautical-inspired details such as sea-weathered rope, industrial-style baskets, creatively themed treats, and fun food labels. Little guests could (and did) easily reach rolls of Lifesavers. There were fish and beach ball-shaped sugar cookies from Market of Choice Bakery, along with fruit leather “seaweed” and a display of Twinkies cleverly tagged “submarines”.

Another galley favorite included the “shish kabobs”. Would you believe these were simply sea-inspired fruit snacks arranged on toothpicks? The terrific aqua-colored stand is a DIY item Andrea made. Cupcakes topped with waves of frosting and sprinkles with cheery printable toppers made a colorful addition to the spread of treats. The pennant banner on the front of the table proclaiming, “Alex is 5” was a nice way to tie in the theme.

According to Andrea, guests weren’t hesitant at all about going overboard. She had the pool stocked with a selection of water toys and the kids enjoyed swimming and playing with the artificial sea life. Swimming is a great summer party activity. It seems like swimming revs up the appetite, too, and Andrea was ready for the hungry kids. “Schools” of fish-filled polka-dot party cups were another party favorite along with Subway sandwiches, chips, fresh fruit, and a variety of salads.

We love the clever favor boxes Andrea designed! Using lifesavers, glue, and a straw, Andrea transformed yellow gable boxes from Jilly Bean Kids into adorable submarines, complete with periscopes and portholes. Filled with treats and topped off with a printable tag, the mini-submarines were a terrific way to say “thanks” to party guests. In addition, they took home yellow polka-dotted goody bags, a bottle of “ocean water” bubbles, and a boatload of good memories.

Ice-cold “sea” water and refreshing lemonade were on hand for guests to grab and drink when thirsty. Notice the custom stickers made by Andrea for the water bottles. Even the straws remind us of tiny periscopes. What Fun! Love Andrea’s style? Follow her on Facebook too!

Be sure to check out more nautical party ideas here:

Plus, don’t miss out on 12 Nautical Birthday Party and Baby Shower Ideas

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