Diaper Cakes?

I keep seeing them everywhere lately! Due to a new job I'm waiting to here back on I may have to discontinue my invitation website because of a conflict of interest. I don't want to just rip it down so I'm looking for other ideas and products to offer. I've already agreed to sell a product for a good friend. More on that in the future when she unveils her fun, fresh and funky idea. I love it! I was considering adding diaper cakes to the site. Would people buy these? I'm also thinking about doing ones with towels...both for baby showers, bridal showers and house warming. I'm in love with the whole idea I just don't know if it would really sell well. Feedback please.