Toilet tissue dispenser
FIG. 1 is a top, front, and left side perspective view of a toilet tissue dispenser showing my new design, the broken-line disclosure of a portion of a wall being for illustrative purposes only and forming no part of the claimed design; 
     FIG. 2 is an enlarged front elevational view thereof; 
     FIG. 3 is an enlarged right side elevational view thereof; 
     FIG. 4 is an enlarged rear elevational view thereof; 
     FIG. 5 is an enlarged top plan view thereof; 
     FIG. 6 is an enlarged bottom plan view thereof; 
     FIG. 7 is a top, front, and left side perspective view of an alternate embodiment of a toilet tissue dispenser showing my new design, the broken-line disclosure of a portion of a wall being for illustrative purposes only and forming no part of the claimed design; 
     FIG. 8 is an enlarged front elevational view thereof; 
     FIG. 9 is an enlarged right side elevational view thereof; 
     FIG. 10 is an enlarged rear elevational view thereof; 
     FIG. 11 is an enlarged top plan view thereof; and, 
     FIG. 12 is an enlarged bottom plan view thereof.