Replacement G910 Keyboard flippy foot thing.
Even sorta does the flippy snap that the original does, though not as perfect. Works great!
Can peel off the old rubber piece from the original and stick it on here, though may not even need it depending on your desk surface.
print your own or buy from me: https://www.etsy.com/listing/1424507182/keyboard-replacement-feet-for-logitech