If we're talking about beating up goobues:
Make a lot of friends. A lot of them. Get them all to thaumaturge 10, and suicide rush the goobue with punishing barbs.
Absolutely horrendous from a getting SP perspective, but you might be able to get an item off of him. There is a goobue southwest of Limsa's R10 camp (The name escapes me, it's the camp west of Bearded Rock), and there is one near the lighthouse far south of Limsa.
Sorry, I can't think of a good flower.
OP, if you're on Besaid I'll volunteer to help in your endeavor! I shall be your disposable meat shield of love! Watch me fling myself in the name of your passion to the Goobue while it squishes me flat. Hehe actually that sounds kind of fun, next time I'm bored I'll see if I can't get a group of people who want to bum rush a target just for the heck of it. If they ever do an Eorzean Census like they did with FFXI's Vana'diel Census I can see my number of deaths just doing this.
Moogle: "Kupo, you have been incapacitated: 636,263,784,115,763,741,125,623,162,741,762,167,953,235 times! Oh my! You certainly like to die alot, don't you, kupo?"
Me: "All in the name of love furry buddy!"
Moogle: "I'm not
your furry buddy, kupo..."
Me: "Aww~, fuzzy buddy?"
Moogle: "Try again."
Me: "Um... pudgy buddy?"
Moogle: >_<;; "Are you calling me fat, kupo?!"
Me: "Hmm... Maybe? You do have a pot-belly there."
Moogle: -_-;; "And here you Adventurers wonder why we never show ourselves to your kind, kupo." Edited, Nov 6th 2010 7:51am by SamusKnight