I made chutney over the weekend, used green toms, wrinkly green pepper, green chillies, green everything really with white vinegar. Looks divine (I don't think - but tastes good).
Some of the toms were dried out, ie I cut them in half and they were rock hard with big cavities in the seed area - I discarded these, but if the green toms have juiciness to them, carry on.
Mine has been labelled Snot Pickle (as in S'not Pickle, It's Chutney), other name on the label was going to be The Big Sneeze - Good With Cheese.)
Last year I made an excellent one using excess cucumbers, but as always I flicked over 3 pages at a time so didn't have a hard and fast recipe, but I do know I kept it in the fridge overnight with salted layers of veg to remove excess liquid before boiling up - it was fab, it tasted like gherkin chutney heaven.
In the words of MacArthur Park "I'll never have that recipe again!" :(