Is diluted squash/cordial an option?
A little bit of juice mixed with a lot of water often helps!
I give my daughter pedialyte for the replacement of juice since it’s technically flavored water and I still give her water as well
Seconding a little water + 100% fruit juice! I just don't love the dyes and artificial flavors that are in pedialyte and some flavored waters
@Melissa That’s true, since I already give my child alittle sugar in oatmeal and grits. I try to limit that in juices
Dilute the other drinks gradually. How does he do with a straw?
@Kaylah he sometimes likes them but if it's plastic he will chew it up
I use the Munchkin 360 cups with my daughter. It is silicone, but she can chew on them.
You could always try flavored water