<<Disclaimer:  Verify this information before applying it to your situation.>>

Pam,

The TCCSSG Shopping Guide lists several GF gum options.  Some of the more
popular choices with my children include the following:

Bubble Yum:  4 Variety Pack, Cotton Candy, Grape, Lemon Mint, Peach Meringue,
Regular, Sour Apple, Sour Cherry, Wild Cherry and Wild Strawberry.
There are also sugarless choices:  Grape, Peppermint, Regular, Strawberry and
Variety 4 Pack.

Wrigley's:  Big Red, Doublemint, Juicy Fruit, Spearmint, Winterfresh

Freedent:  Peppermint, Spearmint and Winter Fresh

Hope this helps!
Leigh H.