You can easily find the banana pudding-flavored moonshine at most local liquor stores but if it's not available, you can substitute a good quality banana liqueur (aka creme’ de banana). Keep in mind that banana pudding-flavored moonshine has a milky look to it whereas the banana liqueurs are typically clear or have a yellow color (depending on the brand) to them. This will just make your banana split jell-o shots slightly different in color. If you substitute the moonshine for a banana liqueur, then I would suggest reducing the amount to 1⁄2 cup and increasing the amount of whole milk to 1 cup. The straight banana liqueur has a stronger flavor profile than the sweet banana flavor of the banana pudding cream moonshine. You can order the banana pudding cream moonshine directly from the Ole Smoky Mountain Moonshine company if needed.