The ornamental design for a spill-free beverage coaster with extended side compartments, as shown and described.
FIG. 1 is a perspective view of a spill-free beverage coaster with extended side compartments, showing our new design;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a front view thereof; and,
FIG. 5 is a side view thereof.
Our spill-free beverage coaster with extended side compartments is used to secure a beverage container from accidental spills, and also provide caddy-like compartments to store miscellaneous things.