IMHO best bet is a full size spare, you can then continue any journey with no issues or worries till you can get your damaged tyre fixed or repaired.
Next best is a spacesaver as you can still continue your journey albeit at a slower, more careful speed but getting a replacement will be more urgent.
Next in the list for me would be the gunge can, better than nothing, it might (or might not) repair your tyre at the roadside temporarily but will ultimately ruin it, as it will most likely not be repairable afterwards. Although I do get John A's point about danger on a fast road, so a can would at least be quicker if it works.
Worst of all of course is nothing.
I have to agree with coffeecup, your all bonkers....