for a while I had a device that when you placed a large onion into it would cut it into a big flower shape which you could then dip into batter and deep fry
have you ever tried to dip a large sliced up onion flower into batter and get it into hot oil without losing most of the batter to the floor and burning yourself with hot oil?
I tried it twice. It was then removed from my kitchen as being totally useless. It is far easier to go buy the finished product.
On the other hand, I have a device which will turn potatos into fries when pressed. This has received a LOT of use. I only wish it was larger.
I also own a bread machine. Now... I have heard a lot of people say they have one they have used once or twice and are thinking of throwing it away as being useless. I do not understand those people. Mine is probably close to worn out. In fact it is in operation right now as I type this. It does a wonderful job, and if you take the bread out before it bakes you can put it into a loaf pan and get a normal shaped loaf of really good bread for the cost of a few cups of flower and some yeast.
I have never owned a Foreman Grill. I like grease and wouldn't want it to run off.