Free images of seed pods are available on stock image sites such as Photobucket, as of 2015. You can serach the entire database of Photobucket by using the search bar in the top right corner of the website.
Once you find the seed pod image you wish to download, you can obtain the image by clicking on it and selecting “Download” under options on the next page. You can also buy printed copies of the picture or share the image in a link. The cost to buy a print depends on the size and quantity. Photobucket also provides the HTML code of the image to make it easy to add the picture directly to websites.