A few tools already exist [1] to post photos into comments on Flickr.com, but they all need you to cut and paste some obscure code snippet.
This is hardly practical when you want to post more than one photo, can be prone to error and well, didn’t fully suit me.
So, as usual, I open my little code editor, loaded the greasemonkey template and started hacking Flickr.

This script will remember the 15 last photos [2] you have visited and display their thumbnail over every comment box on Flickr.
Get Firefox Install GreaseMonkey restart Firefox If you liked the script, think about helping me back and consider a small donation, click the paypal button on the right. Click on the following icon and select "Install"
3642 download(s) since 25 July 2007
You can select the size you want to post and then click on the thumbnail of the photo of interest to insert the obscure voOdOo code in the comment field. You can repeat that for all the photos you want, and you are done.
So how would you use it?
visit the photo you want to post somewhere else, go to the discussion where you want to post, click on "Post a photo...", select the size, click on the thumbnail of the shot you want, post the comment.
1Localisations
The script is now localised in French and English and partly translated in ç¹é«”䏿–‡, Deutsch, Español, 한글 and Português . To help finish the translations, please see Help localise Flickr scripts