First search for some red mushrooms. Once you find some, smelt them in the furnace and they will become red dye when done. If you are planning to make lots of red dye, I recommend making a mushroom farm to reproduce mushrooms.
by putting cactus in a furnace u get dark green. to make lime green you add bone meal to dark green in a crafting table. ( dark green is called cactus green by the way)
You can make red dye by taking red flowers and putting them in your crafting table like you would as if you were converting logs to planks
get a red flower and craft it in the decoration section
Make a redstone circuit.
You can't make a collar. When you get a wolf, they automatically get a red collar. You don't need to make a collar.
With a bowl you can make mushroom soup, but you need brown and red mushrroms
Find a rose (a red flower), click it to remove it, then put the flower in a crafting table. The result is red dye.
Combine it with red and brown mushrooms to make mushroom stew
If you place a red rose in your crafting box, you will receive red dye. You then place the red dye and wool into the crafting box, and you'll receive red wool.
You can place flowers on dirt blocks or make a garden out of them. In minecraft 1.4 (which is coming out in october or november) they'll have flower pots which will be really cool!
I didn't make Minecraft.
You get some brown and red die and die the brown on it first. Then you take the red die and die spots on it with the red die. The brown die would stand for fluids an fungus. The red die would stand for the blood from someone or something.
find a diamond and die it red
find a diamond and die it red