There is a special fishing place in the forest. If you do not know where that is, check your map. That should help. There will be a picture of a pier on the map. Click on it, and there's a blue arrow with a flag in the corner. Follow the arrow, and there you are. Fishing is hard to explain, so maybe you should put another question up or someone can improve this. Hopefully you know how to fish. I hope this answer helps!! :D
You can find chocolate in MySims Kingdom by digging in Cutetopia.
You can find them in Candypalooza!
you find it in your head
On MySims Wii, the Sunflower essence can be found on a tree near the houses in the North of the Desert!
You Find her at about level 2 and in the hotel..
There are no skull essences
they might be on the island with the elves.
light poles
You can try google, or research it on WikiAnswers, or youtube
you get a simoleons by playing the mini games.
You dig at Candy palooza.
you use the metal detector to find onxy