Hey ! I'm looking for cheap mini sandwiches ideas or food combinatins.

Hey, Vaida Jonusyte, what's the occasion, if you will?

pimiento cheese finger sandwiches

Mini cornbread muffins with country ham, mustard or pepper jelly; or with turkey breast and cranberry sauce.

Radishes with a very good butter and sea salt.
Cucumber with cream cheese

A nice hard cheese with some great jam.

Thank you so much! :)

This might give you some ideas
http://saveur.com/gallery2/easy-sandwiches

Sliced ham on a little Hawaiian bun with honey mustard.

I can't wait to try this one - http://food52.com/blog/7574-manchego-grilled-red-pepper-potato-sandwich-with-paprika-mayo - and you could definitely do a mini version of it. You might also get some ideas from the entries in Your Best Cheap Feast contest - http://food52.com/contests/330-your-best-cheap-feast.