If you wanna get hexagons without grinding put in cheat if on multiplayer if on singleplayer your fine no cheat btw for xbox one you have to bring up menu and press RB and Lb and x and y at the same time to get cheats tab if your on pc and for ps4 same as xbox but hit the positions were you hit the buttons on xbox. Now for the code for hexagons on genisis givehexagons whatever number you want then 0 0 then hit enter.
These guys are incredibly useful from being a portable light that works for a long time to being a cute little friend in hardship. Do not kill these, they are too cute, I died to a basilisk on a mana and the bulbdog jumped off and ran strait for it... I now have a graveyard near my base. R.i.p Bulbdog dude