Flexible straw brush

The ornamental design for a flexible straw brush, as shown and described.

FIG. 1 is a front elevational view of a flexible straw brush showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

Patent	Priority	Assignee	Title
11911526,	Jan 22 2019		Drinking straw sanitizing appliance
D817005,	Apr 17 2017		Scrub brush
D911033,	Sep 05 2019	SPECTRUM DIVERSIFIED DESIGNS, LLC	Brush
D917892,	Sep 05 2019	SPECTRUM DIVERSIFIED DESIGNS, LLC	Brush
D927197,	Sep 05 2019	SPECTRUM DIVERSIFIED DESIGNS, LLC	Brush
ER2471,
ER3583,

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