The celebrating the season, the July issue of Dengeki Daioh, on sale May 27th, offers a bonus, swimsuit mini-figure of The Devil is a Part-Timer!'s Chiho Sasaki. Along with that, buyers can send alway for a "wading" figure of A Certain Scientific Railgun's Mikoto Misaka, complete with wet t-shirt.
The Chiho mini-figure is based on the cover of Devil's fourth light novel.
The Misaka mail-order figure captures the character in the middle of cleaning a swimming pool. It comes with an alternate expression face.
via AkibaBlog (NSFW!)