This link is for 100+ unmounted sentiment stamps from My Sentiments Exactly. It is on Ebay but it is a Buy It Now and the price has been reduced from $24.95 to $19.96. I have these stamps and they are great. They would be even greater if I hadn't paid $24.95.
The next bargain is for 50 unmounted rubber stamps from Hampton Art Stamps for $8.75 also on Ebay but hurry only 1 day left! I have also bought these stamps and there is a free gift included.
These are much less than $1 per stamp so hop on over and grab yourself a bargain!