any portion and or no portion of the lid 104 in the embodiment shown in fig7 the lid includes a perimeter recess 704 in the embodiment shown in fig7 the perimeter recess is adapted to selectively engage the lip 402 of the base to form a substantially fluid tight seal fig8 depicts an alternate embodiment of the lid 104 depicted in fig7 in the embodiment shown in fig8 the lid includes an aperture 702 that is substantially star shaped additionally in the embodiment shown in fig8 at least some portions of the edges 802 of the aperture can be comprised of a material different from the balance of the lid 104 in the embodiment shown in fig8 some portions of the edges 802 are comprised of a flexible synthetic rubber such as neoprene u2122 however in alternate embodiment as least some portions of the edges 802 can be comprised of any known and or convenient material fig9 depicts an alternate embodiment of the lid 104 depicted in fig1 in the embodiment shown on fig9 the lid 104 includes a tab 902 an aperture 702 and four elastomeric elements 904 in the embodiment shown in fig9 the lid 104 includes a tab 902 to facilitate removal of the lid 104 from the base 102 in the embodiment shown in fig9 the tab 902 has a substantially triangular shape however in alternate embodiments the tab can have any convenient shape and or the lid 104 can include more than one tab 902 in the embodiment shown in fig9 the lid 104 includes four elastomeric elements 904 uniformly spaced around the perimeter of the aperture 702 however in alternate embodiments any convenient number.