Yeah, I found quite a lot of things by searching the code. God bless open source!
The coin-onna-string is new to me, quite interesting. I know some items can only be acquired with both hacked machine AND a coin. Water flower is obtained through coin, POSSIBLY with hacked seeds machine, not sure.
Also, I went through Chemistry code (fun fact: there is a recipe for Cyanide, except commented out), and I only found the usual recipes. I tried experimenting with Holy Water, but to no good results sadly. Do you know of any secret recipes hidden in other parts of the code? Also, once upon an Extended, I propose to launch space exploration on unprecedented scale, because there might be a lot of really interesting things on the various piles of SPESS debris.
Mostly just hydroponics stuff, although, fun fact, you can heal people with lime juice, tomato juice, and a few other juices. IIRC, lime juice heals toxins, tomato heals brute, I think orange juice heals either kelotane or suffocation, and there was another type of juice. There's a juice for each damage type, even radiation, I think, but they only have a chance of working for each tick of chemical, rather than actual healing items, which definitely heal.
Amatoxin is different from regular toxin, but I can't remember if it's better or worse. There's almost literally no point to getting Destroying Angels over Amanita because they both supply amatoxin. Nettles have sulph acid, death nettles have poly acid. Deathberries have lexorin in addition to toxin, but they're not that much more effective than poisonberries otherwise.
One of the hugest problems with hydroponics is the lack of anti-toxin, which is only grown by a SINGLE PLANT, which is the kudzu. Kudzu is a rare weed. Actually, if you just want to get any mutations at all, it's best to inject units of sugar into your plants which increase the pest+weed level by 1. In fact, I would say that growing regular nettles, but increasing the weed level to 5 is FAR better to get Death Nettles. In any case, I would say to increase your weed level to 5 because it's actually more likely to mutate weeds or pests as opposed to the actual plant species. And yes, you can plant the kudzu to flood the station with it.
-Cherries/Grapes have sugar in them.
-Both species of ambrosia do toxin damage raw, but you can filter out the toxins and synaptizine with use of the chef's utilities. -Almost all plants have nutriment. 5 units of nutriment when injected into plants is enough to heal each tick of health drain that occurs when the plants are past their lifespan. So technically, you can keep your plants alive infinitely.
-There are two mutations of sunflowers: moonflowers and novaflowers. Moonflowers have moonshine in them. Novaflowers do actual burn damage, although the death nettles are still a better choice because they have a stun component, IIRC.
There's a bunch of other stuff in there that is not documented at all in the tgstation wiki.
Wizard vendomat just has a bottle of wizarditis virus when hacked. Not that useful, but it can be good for confusing the station.
Oh, also, feeding the mint in the chef's room to a fat person is the best robusting method.