This plugin is just for fun. Sometimes a visitor would like to say that he likes a post. Suggest him some standard phrases.
It’s still in developement. So check for new releases daily!
New features in 0.8 
Enable/disable for posts and pages seperately 
Randomize comment list
Fixed in 0.7 
quotes can be used now 
implemented support for “comment” and “comment-text” textarea id’s 
activation might have caused problems with WP version < 2.3

Suggest Comments

Suggest some comments to your lazy visitors. Can also be used as a simple survey tool on the comment form.

webgarb

Captcha Garb is yet a stylish puzzle like fun comment spam blocking plugin that block spam comment posted by automated bots.
The plug-in comes with 58 cool puzzle images and you even can upload yours direct from captcha garb admin page ! :).
Please comment you view about this plugin here <a href="http://webgarb.com/captcha-garb/" rel="nofollow ugc">Captcha Garb Page</a>.

Captcha Garb

Fun Captcha that your visitor also like to challange it.

Suggest Comments vs Captcha Garb