Sheddable tips
Well, the Harrier 1 ( i.e. all-metal, GR1-3 & Sea Harrier ) had optional ' ferry tips ' which could be fitted for extended range, I believe limited to 3.5G, certainly by my time no-one bothered with them, even on the epic GR3 flight to Ascension in 1982 ( there was a higher ' ferry ' engine oil level which certainly was used though ).
These tips looked like a good bet of coming off (or becoming 'winglets' !)in the case of any vigorous manouvres, which may be one of the reasons they weren't used; obviously J.Farley's input would be useful on this one, as ever.