"b's have bellies, & d's don't!"
I brought Lena over and enthusiastically explained to her that she could tell the difference between the two letters by remembering that "b's have bellies, and d's don't!" She looked up at the board and very matter-of-factly said to me, "That looks like a butt." And... we both erupted into a flurry of giggles! She said exactly what I was thinking. I mean, seriously, who doesn't see a big ole' booty when they look at that?! And how helpful is this gonna be? If a 'd' has a butt... that starts with 'b' too! And so does booty, which of course I mentioned and was rewarded with even more laughter! So what we learned was that "b's have bellies, and d's have butts." That's some solid homeschooling right there. ;-)