The following is based on unverified behind the scenes information and has not been confirmed by canon sources.
There is a buffalo gourd seed wedged between two machines that appear to be unsuccessfully attempting to crush it. This could be another reference to the film Buckaroo Banzai in which a watermelon is found in almost the exact same situation.
End of information based on unverified behind the scenes information.
With the Wild Wasteland trait, the Y-17 master trauma harness and the three regular Y-17s that spawn upon his death will say and repeat "Hey, who turned out the lights?" This is a reference to the Doctor Who episode "Silence in the Library."