I was thinking about typing up a cake information sheet to give to all of my customers. Mainly, I wanted to include how to disasemble and serve a stacked cake. Then, I got to thinking, it would probably be a good idea to let them know that gumpaste decorations with luster dusts, flowers with wire, and dowel rods are not for eating. If anyone has done something like this, I'd love to see how you've put it together beacuse, let's face it, most of the population is cake dumb. 
Another thing you might want to add is a food coloring statement/disclaimer.
"Please note that eating excessive amounts of a single color of frosting may cause a change in color to your urine or stools. "
I did a 6 inch round cake for a 1st birthday and the mom wanted it bright red with blue and yellow accents. It was one of my first cakes and I was so pround of how it turned out.
She called me in a panic that night because she let him eat all the frosting his little tummy could hold (and probably more). Needless to say what went in as red frosting came out as red "something else".
I felt horrible because I had no idea that red would do that. I asked my girlfriend and she said that it happened to her too in her early days and she labeled her boxes with labels reading that statement now to avoid the panic and accusations of turning her customers red from the inside out. 
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