There are a few.
For example, all shingles blocks ( I'm pretty sure all of them )
<block id="858" name="shinglesOld">
<property name="Material" value="wood" />
<property name="Texture" value="192" />
<property name="CanMobsSpawnOn" value="false" />
<drop event="Destroy" name="woodDebris" count="1" />
<drop event="Fall" name="woodDebris" count="1" prob="1.0" stick_chance=".75" />
</block>