Okay, so first you are going to go trough a portal, Elite world or any other world you want.
Then you want to find the Peaceful Hills biome, you will see the picture right here.

Once you are there then you will find these big yellow flowers that are all around the place.
You will go to the flowers and collect all of the sunlight bulbs that you can. Repeat this process as much as you can untill all flowers are clear.

Next you will go to the marketplace and go under ''Sell''. Over there, add 150 Sunlight Bulbs for a price of 1000 Flux. Once you have put the Sunlight Bulbs in the market, just wait and you should have some text saying that you sold the bulbs.

Then confirm the Flux, rinse and repeat untill you have what you wanted!
Personally I collected 48k for some wings, pretty rad :D

That's it!