FIG. 1 is a front perspective view of a first embodiment of a tile spacer according to my new and ornamental design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a front perspective view of a second embodiment of a tile spacer according to my new and ornamental design;
FIG. 10 is a rear perspective view thereof;
FIG. 11 is a front elevational view thereof;
FIG. 12 is a rear elevational view thereof;
FIG. 13 is a left side elevational view thereof;
FIG. 14 is a right side elevational view thereof;
FIG. 15 is a top plan view thereof;
FIG. 16 is a bottom plan view thereof;
FIG. 17 is a front perspective view of a third embodiment of a tile spacer according to my new and ornamental design;
FIG. 18 is a rear perspective view thereof;
FIG. 19 is a front elevational view thereof;
FIG. 20 is a rear elevational view thereof;
FIG. 21 is a left side elevational view thereof;
FIG. 22 is a right side elevational view thereof;
FIG. 23 is a top plan view thereof;
FIG. 24 is a bottom plan view thereof;
FIG. 25 is a front perspective view of a fourth embodiment of a tile spacer according to my new and ornamental design;
FIG. 26 is a rear perspective view thereof;
FIG. 27 is a front elevational view thereof;
FIG. 28 is a rear elevational view thereof;
FIG. 29 is a left side elevational view thereof;
FIG. 30 is a right side elevational view thereof;
FIG. 31 is a top plan view thereof; and,
FIG. 32 is a bottom plan view thereof.
The portions of the first, second, third, and fourth embodiments of the tile spacer shown in broken lines form no part of the claimed design. The dash-dot broken lines between the portions of the first, second, third, and fourth embodiments of the tile spacer shown in solid lines and the portions of the first, second, third, and fourth embodiments of the tile spacer shown in broken lines represent bounds of the claimed design; the broken lines form no part of the claimed design.