The Oxford Overgrips are another great option. They wrap and strap around your existing grip and plug into a quick connector that you pre-wire. They can be installed or removed in under a minute.
With the weather changing so erratically here in Fall,............it's the best choice for me. There is nothing permanant on the bike other than the wiring and quick connectors,............which can be mounted out of plan view. Good luck with your choice!!