Jim's Sticky Ring
Jim's Sticky Ring is a doughnut outlet based in Market, Los Santos. The company appears during Grand Theft Auto: San Andreas. The shop makes two appearances in missions for C.R.A.S.H., namely Burning Desire and Gray Imports. It is the starting place for both of these missions.
There is an interior but it is inaccessible to the player, but you can still go there through the Hidden Interiors Universe. Apparently, when the player manages to access the shop, it says Rusty Brown's.