Bubble Machine

FIG. 1 is a front, right and top perspective view of a bubble machine, showing my new design;

FIG. 2 is rear, left and bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is an enlarged top plan view thereof;

FIG. 8 is an enlarged bottom plan view thereof; and,

FIG. 9 is an enlarged view of portion 9 of FIG. 1 .

The broken line showing of the bubble machine is for the purpose of illustrating portions of the article and forms no part of the claimed design. The dot-dash broken lines depict the boundary of the enlargement that form no part of the claimed design.