An　ultrathin-film　microring　laser　was　fabricated　using　inkjet　printing　and　a　simple　lift-off　technique.　Whispering-gallery-mode　lasing　was　observed　under　optically　pumped　conditions　in　the　film.　The　freestanding　laser　can　be　transferred　to　arbitrary　surfaces　for　multifunctional　applications,　such　as　acoustic　and　relative　humidity　sensing.　Using　the　first　eigenmode　of　a　membrane　vibration,　an　acoustic　sensor　with　a　0.15　Pa　limit　of　detection　was　demonstrated　via　laser　bandwidth　broadening.　A　relative　humidity　sensor　with　a　1.1%　limit　of　detection　via　wavelength　shifts　was　demonstrated　by　placing　the　device　on　an　optical　fiber　facet.　These　cost-effective,　transferrable,　multifunctional　laser　sensors　will　have　many　additional　applications.