Thanks guys! I'll share the custom steam logo in a minute.
Edit:

I might make more if people like this one.
How to use:
1. Make sure you are using Grid View in Steam. Under the Library Tab, click on the grid icon next to View: in the upper right.
2. Navigate to your Blockland entry in Steam.
2a. If you don't have one, click "Add a Game" in the lower left, select "Add a Non-Steam Game," then select "Browse..." From there, navigate to /Documents/Blockland/ and select Blockland.exe, then click "Add Selected Programs."
3. Right-click on your Blockland Entry (it should show the small Blockland program logo) and select "Set Custom Image...", then click "Browse..."
4. Navigate to where you saved the above image, and click "Open", then click "Set Image".