Using Cheat Engine - farmbucks animals for coins.

Once again, open your farm and cheat engine as normal. Now we're going to edit the cost of animals in the market. Ones that would usually cost farmbucks, we're going to be able to buy for coins.
Be careful with this one, abuse of it will likely result in a suspension or ban.

This has a lot of steps but is a simple concept.

In Cheat Engine, set the drop down menu of value type to array of bytes.

Make sure the box that says Hex is ticked. In the text box space enter;
40 42 0F 00 40 42 0F 00 00 00 00 00
Click first scan and it will bring up a couple of results. Highlight them and send them to the lower box using the red arrow.
Now click new scan and in the text entry box put;
29 00 00 00 29 00 00 00 00 00 00 00
As before, send the results to the box below. 
Now you should have a whole bunch of results in the lower box.
Highlight them all and right click to change record > type. Change the length from 12 to 16.

Write this down, or open notepad. Bear in mind that your results will be different to my examples below.

From the details in the bottom box, write down the last 8 digits of the entries that begin with 40 42 0F

(In the example above this is F0 04 12 1A) This is your coins value.

And then write down the last 8 digits of the entries that begin with 29 00 00 00. Pick the one that there are most of.

(My example is 98 EE 28 1B)

This value is your farmbucks value.

Now, go to new search and enter your farmbucks value (98 EE 28 1B), search and send the results to the lower box with all the others.

In the lower box, scroll down until you see the new entries. They are shorter so you'll know which ones the are. Use shift click to highlight just these ones.

Right click to change record > value and enter your coins value.

Click okay, open your market and look at the animals. If you did it correctly, all the animals should now only cost coins.