When Lori Nichols of Oregon, WI was in her late 20s, she once asked her mom to baby-sit without revealing where she was going. "When I got back hours later, I showed her why she was watching the kids," Nichols said, turning to show off the red rose she had tattooed on her shoulder. "I thought she'd be mad, but she was jealous," Nichols said. "(I didn't know) my mom always wanted a yellow rose . . . She wanted one, but she was stuck with (my dad) for so long." Ever since her mom died in September 2004, Nichols...