Rogue pranked

Rogue gets pranked by Iceman into jumping off a diving board straight into an iced-over pool from Marvel Comic's X-Men #38 (1994)

Shanna gets wet and messy

Shanna the She-Devil and Wolverine make their way through the treacherous Savage Land; enduring the elements, muddy terrain, as well as the native predators...

However, after being caught in the middle of a conflict Shanna is left mortally wounded with her only chance being that of an ancient ritual...   

Taken from Marvel Comic's Savage Wolverine #2 and #4 (2013)

White Rabbit (and Arcade) fall into mud pit

White Rabbit (and Arcade unfortunately) fall into a mud pit. To add insult to injury, White Rabbit also gets egg in her face, literally. From Marvel Comic's Wolverine & Black Cat - Claws II #3 (2011) 

Betty and Veronica on messy game show

Betty Cooper and Veronica Lodge take part in a messy game show unaware that it will be aired on national T.V. from Archie Comic's Betty and Veronica Double Digest #159 (1987)

Credit to magicthief1412 for this Archie Comics find!

Ms. Marvel falls into river of slime

Ms. Marvel falls into a river of slime and gets covered in gunk from Marvel Comic's Ms. Marvel #21 (2008)

Storm and Psylocke covered in foam

Storm & Psylocke get wet and covered in foam in Marvel Comic’s The Uncanny X-Men #244 (1989)

Zatanna dunked

Zatanna gets her head dunked by Poison Ivy in DC Comic’s Gotham City Sirens #1 (2009)