My idea would be to make some changes about the teletabs;
-They are easy to get (5-10 per kills)
-Drops all variants of teletabs (or almost?)
-Wizards are easy to kill
To make it better, I think having some wizards around the concerned areas to drop the teletabs could be a nice idea (with lower drop rate), like having wizards in Lumbridge dropping Lumbridge Teletabs, etc.
And my second idea to this, would be to add a stronger wizard-like NPC that'd be hard to kill and would drop all variants of the teletabs, in a larger number. (Maybe 5-20)
Tell me what do you guys think of this?