I included a little picture book that related to the birthday theme (bookdepository had some for less than $3). For young baby's I got a little onesie and did a printed personalised iron transfer. My theme is valentine's day so it's been easy to find little goodie bag gifts - heart sunnies, pencils etc.
I don't give candy to my little one, but I emailed the mothers and asked them whether they would prefer I include it/or didn't - so far all of them have been pro candy, so instead of lots of candy I will just include one thing, like a large old-school lollypop.
