embodiments further comprise a keyed interface between channel 115 and removable support structure 117 as shown in some instances a removable support structure is provided having various surfaces and structures that are optimized for a particular sport such as fishing in other instances a removable support device is provided having a variety of pieces that may be selectively removed or altered by a user to customize the surfaces and structure of the support device to one or more particular sports removable support surface 117 may further comprise a secondary support surface not shown that may be exposed for use by inserting removable support surface 117 into channel 115 in an inverted orientation whereby the presently exposed support surface 117 is positioned within channel 115 and a secondary support surface not shown extends outwardly from the top surface of body 101 referring now to fig5 a and 5b in some embodiments supporting device 100 can include a light 103 that is embedded within the top surface of body 101 a switch 103 a can also be positioned on the top surface of body 101 for controlling the functionality of light 103 in some embodiments light 103 may be removably attached to body 101 so that light 103 can be used separately from supporting device 100 light 103 can have different modes of operation.