Mod Dolan's rubber duck is an easter egg item for players obtainable as a "drop". It can be used in the place of mega ducklings to unlock the title [Name] the Totally Quackers. It has a 1 in 10,000 chance of being obtained from digging for composts/supercomposts using the fertiliser ability of legendary pets. It doesn't appear immediately after the pet does its special move.
The other possible drop is Mod Daze's homework.
|Item quantity required||1|
|Base junk chance||98.9%|
- ^ Jagex. Mod Dolan's Twitter account. 22 May 2015. Mod Dolan: "Just to let you all know: http://runescape.wikia.com/wiki/Mod_Dolan%27s_rubber_duck … IS obtainable in game. I'm not going to tell you how - just yet ;)! But it's a 'drop'"
- ^ Jagex. Mod Dolan's Twitter account. 30 June 2015. Mod Dolan: "1 in 10,000 from the fertiliser ability, now you know :D!"