Then add one!

Make a new text file on the desktop and call it ‘Trash’
Open the file and paste the following into it:

[Desktop Entry]
Comment=Contains removed files
EmptyIcon=trashcan_empty
Encoding=UTF-8
Icon=trashcan_full
Name=Trash
Type=Link
URL=trash:/

Save the file and close it. The text file will turn into a trash can automatically! w00t!