Congrads on being a new dad. There is no need for all that hardware since with twins you have 2 "pooping" machnies at your disposale! All you need is some plastic bags and just hold on to those dirty diapers when someone shady approached open the bags (works best in hot months) and the smell will make most men run!
As the father of a 5 month old who just switched to cereal, I can confirm this.