The ornamental design for a cannabistrichomeextractor, as shown and described.
FIG. 1 is a top perspective view of a cannabis trichome extractor showing my new design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a top exploded perspective view thereof;
FIG. 4 is a bottom exploded perspective view thereof;
FIG. 5 is a front elevated view thereof;
FIG. 6 is a back elevated view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a left elevated view thereof; and,
FIG. 10 is a right elevated view thereof.
The broken lines showing of a screen in FIGS. 1-4 and FIGS. 7-8 are included for the purpose of showing environmental structure and form no part of the claimed design.