Therapeutic device

A therapeutic device, comprising:

• an outer shell configured as a human hand and defining an interior area, said outer shell having a finger end opposite a wrist end;
• a pocket in said interior area, said pocket being defined by at least one inner wall;
• a rigid endplate coupled to said outer shell at said wrist end and coupled to said at least one inner wall to define a closed area between said outer shell and said pocket, said endplate having an opening for allowing access to said pocket, said endplate defining a catch adjacent said opening;
• fill material in said closed area;
• an enhancing unit removably positioned in said pocket through said endplate opening to provide at least one of an audible, visual, or tactile effect;
• said enhancing unit having a lock complementary to said catch to selectively couple said enhancing unit to said endplate;
• wherein:
• said catch is a recess;
• said lock includes a spring tab having:
• a protrusion complementary to said recess to selectively couple said enhancing unit to said endplate through interaction between said protrusion and said recess;
• and
• a grip portion accessible when said protrusion interacts with said recess to selectively separate said protrusion from said recess;
• and
• said spring tab is biased to cause said protrusion to interact with said recess.