The long stick type mini-iron with the triangle shaped head that you may or may not be able to change to different shapes? Yes, I have one and find it very useful for small work where I can't get a flat press without messing up somthing nearby with the big iron.
I first used it to heat set fusible small pieces inside blocks or to fuse small pieces while fabric is still in the embroidery hoop.
When you need flat heat in a tight spot so you don't melt something nearby, you want a super small long necked iron.
Once you try it a few times you won't want to let it go.
Yes, they do take longer to heat up, and yes, set it down the same way each time in the same place or you are going to grab it by the business end by accident. But we already trained ourselves to do this with big irons, didn't we?
have fun,