An accessory includes a band member and a button. The band member includes an elongated body defining a band interior cavity containing a fluid (gas or liquid) and further includes a band contact region formed along a length of the elongated body. The button has top and bottom portions and a body extending therebetween. The bottom portion is operably coupled to the band member. The body defines a button interior cavity that is in fluid communication with the band interior cavity, and further includes an expandable mechanism that includes first and second ends and a longitudinal axis. The expandable mechanism is movable between an expanded configuration and a collapsed configuration to selectively move the button between an expanded position and a collapsed position. Upon engaging the band contact region, the fluid urges the button to the expanded position.