The design for a combinationdogplay and restraint unit, as shown and described.
FIG. 1 is an upper right front perspective view of a dog play and restraint unit;
FIG. 2 is an upper left rear perspective view of a dog play and restraint unit;
FIG. 3 is a front elevational view of a dog play and restraint unit;
FIG. 4 is a right side elevational view of a dog play and restraint unit, the left side is a mirror image thereof;
FIG. 5 is a rear elevational view of a dog play and restraint unit;
FIG. 6 is a top plan view of a dog play and restraint unit; and,
FIG. 7 is a bottom plan view of a dog play and restraint unit.
The broken line showing of the lower portion of the shaft and the handle is included for the purpose of illustrating and forms no part of the claimed design.