Have several coffee cans and was wondering if I could use these for flower pots with success?

Of course you can use them as containers.

Coffee cans come in different materials these days. Different brands use different materials.

Plastic "coffee cans" are great to repurpose. Drill, punch, or cut some holes in the bottom for drainage and you're good to go.

All metal coffee cans can also be used for planting. Again drill holes for drainage, or use a punch type can opener (the kind that punches triangular holes near the edge of the can) around the bottom of the can. The only problem with metal coffee cans is that they rust pretty quickly. They only last a year or two.

The final type of "coffee can" is made from a cardboard tube with a metal bottom and a metal ring around the top. These are less useful for plants. They tend to degrade from the wetness of the mix or soil.

Barbwire,
Here are some things I did, one of which was painting the tin cans and drilling holes for drainage. The plants did very well and lasted for several years before I had to toss them. The fun thing is that you can use whatever color/colors, designs, etc. that you want.
http://garden.org/ideas/view/v...

Give it a try, you will have so much fun with it.

I ran out of nursery pots starting cannas last year. Luckily my mom had a large hoard of plastic coffee cans in her garage. With permission and a drill they worked great. When weather was questionable I'd move them in to the garage, earlier starts make for taller plants faster. After transplanting I topped them off with garden soil and tossed in excess leaf lettuce seed and rotated them to the back porch as needed. The molded handholds are a nice feature.

I've used the plastic coffee and creamer containers and cut them in half for daylily seedlings. Here is how I did it, but they can be left whole. I've also used the plastic lids as water catchers for other pots.

http://garden.org/ideas/view/b...