We too are honeymooning :) My son is 3 and also got diagnosed on the 26th August this year! I am also after snack ideas so i will be watching this one very closely :)
We are big fans of peanut butter crackers or cheese crackers. They seem to raise BGs and keep them up.
My son was also diagnosed as a sophomore in high school. I always bought the type of snacks that are preportioned for school lunches. They were grab and go and always had the carbs printed on them. Examples are various cookies (oreos, peanut butters, etc) and crackers (peanut butter, cheese, cheezeits, etc.) There are also individual cups of peanut butter and individual wrapped smaller sleeves of ritz crackers for dipping. Some are not that healthy but a lifesaver if my son was low on the team bus with no options. It is also the type of thing his friends were eating so it wasn't so obviously "diabetic". As a matter of fact, his friends loved to come to our house and raid the snack bowl!
Gatorade is also a good choice and many athletes drink it. If you are at a large high school, the Sports Medicine office will keep juices and gatorades in case of hypoglycemia or other emergencies.