If you need unique ones, how about godly, basically the same as heavenly, but it gives 2x more sheckles than the heavenly mutation, the godly mutation could be on specific day rotations where it is avaliblie for a bit and then unobtainable. for the godly mutation cover the plant in yellow and white or just yellow or white, frosted, like the godly mutation. except it is covered in blue,cyan,and white seeds or cyan or blue or white seeds. and both to answer ur question about coolios or friendos you could also do muddy mutations, just cover the plant in brown seeds, it could also be obtainible during landslide events, the muddy mutation should sell for atleast 1.3x the price of a normal plant. slimey mutattion should be a green seed tinted to dark green and put it on the plant, also put normal green seeds on the plant if you want