Here is my idea When you start a new map, you can not punch tree logs but you can break leaves and they drop sticks (drop chance 0.5) put 4 sticks in the inventory and you get one wood plank, then you can use the wooden axe to cut the logs. A more advanced version would be to forced to make an wooden shovel to get stone cobblestone from the gravel (drop chance 0.25) then make a stone axe to cut the logs.
Hmm, I thought I'd responded to this previously but I can't find my post.... Most of this can be done with OtherDrops (you'll need to find a different plugin to allow you to craft the wood plank from the sticks). An example config for OtherDrops (something like this anyway - tweak to your leisure): Code: LOG: - tool: HANDS drop: DENY damageattacker: 1 message: "Ouch, that hurt - perhaps try using an axe?" # for the advanced version: - tool: WOOD_AXE damagetool: 5 message: "Crunch! You dinted the tree but just ended up damaging your axe - perhaps try a stronger one?" LEAVES: - tool: ANY drop: STICK/2/40% # 50% seems a little high, but you could change this as you like SPECIAL_LEAFDECAY: - drop: STICK/2/10% # keep a lower chance here since leaf decay happens a lot # for the advanced version: STONE: - tool: HANDS drop: DENY damageattacker: 1 message: ["Ouch! Stop hitting the dirt and use a tool!", "Ouch! The stone hurts - use a pickaxe!"] GRAVEL: - tool: WOOD_SHOVEL drop: COBBLESTONE/1/25% message: "Woah... that gravel holds together remarkably well - almost like cobblestone."