FIG. 1 is a perspective view of a cup for a sippy cup in accordance with a first embodiment of my design;
FIG. 2 is another perspective view of the cup for a sippy cup of FIG. 1;
FIG. 3 is a front elevational view of the cup for a sippy cup of FIG. 1;
FIG. 4 is a rear elevational view of the cup for a sippy cup of FIG. 1;
FIG. 5 is a left side elevational view of the cup for a sippy cup of FIG. 1;
FIG. 6 is a right side elevational view of the cup for a sippy cup of FIG. 1;
FIG. 7 is a top plan view of the cup for a sippy cup of FIG. l;
FIG. 8 is a bottom plan view of the cup for a sippy cup of FIG. 1;
FIG. 9 is a perspective view of a cup for a sippy cup in accordance with a second embodiment of my design;
FIG. 10 is another perspective view of the cup for a sippy cup of FIG. 9;
FIG. 11 is a front elevational view of the cup for a sippy cup of FIG. 9;
FIG. 12 is a rear elevational view of the cup for a sippy cup of FIG. 9;
FIG. 13 is a left side elevational view of the cup for a sippy cup of FIG. 9;
FIG. 14 is a right side elevational view of the cup for a sippy cup of FIG. 9;
FIG. 15 is a top plan view of the cup for a sippy cup of FIG. 9; and,
FIG. 16 is a bottom plan view of the cup for a sippy cup of FIG. 9.
The broken lines represent environmental subject matter which forms no part of the claimed design.