Varnishing Brush and Fireproofing Wood

With a brush, blocks of honeycomb and blocks of resin, you should be able to craft a varnishing brush. Right-clicking any wooden block would varnish it, making it immune to fire (This would make sense as both resin and honeycomb are not flammable). The varnishing brush should have over 100 uses. 

Holding a varnishing brush would highlight varnished blocks with an orange outline, similar to barrier blocks becoming visible when holding a barrier block item. 

When in the offhand, a varnishing brush instantly varnishes any wood blocks placed. 

Breaking a varnished block will remove the varnish to prevent inventory clutter.