Hi Sara! Welcome BACK to the Disney Parks Moms Panel! We love it when our long time friends stop back by to talk all things Disney.
I did some digging and it seems that the edible items included in 'Agent P's Power Pack' are still available as 'Kids' Mickey Check Meals' all over Walt Disney World Resort. Specifically in Epcot, a similar combo of items can be found at both the
Electric Umbrella in Future World as well as the
Kringla Bakeri Og Kafe in the World Showcase.
While Agent P's Power Pack came in a really spiffy souvenir lunchbox featuring the sleuth version of Perry the Platypus, online menus usually only indicate if souvenir containers are available when that container is specifically themed to the restaurant where it's sold. An example would be the
LeFou's Brew Souvenir Cup option at Gaston's Tavern. There's for sure a chance that you might still find this wonderful kit in Epcot, as even secret spies
helping Agent P with his World Showcase Adventure still need to eat. However it may or may not be at the two locations listed above, and the only indication it would be available would be special signage located near the ordering area. So keep your eyes peeled at quick service locations and carts around Epcot. (Or better yet, set this as your own spies super DUPER secret mission.)
Another option would be to reach out to the Merchandise Services team who can track down almost anything, hopefully including this detective's protective lunch holder. Their email is Merchandise.Guest.Services@DisneyParks.com.
~Kristen