oh yeah, i've been making my own soda with maple syrup.
step 1: buy seltzer water with 0 additives (or if you have a way of carbonating water go for it!)
step 2: obtain maple syrup
step 3: 2 tbsp maple syrup in a pint glass
step 4: pour in half a can of seltzer water, stir up the seltzer and syrup, then add the other half of the can.
DONE. tastes like cream soda almost, but still mapley. I also use maple syrup as a sugar substitute for anything, especially coffee