League of Legends (LoL) Question: Have you ever tried to build a squishy champion tank items?

People do it all the time on Ryze

You should probably give examples of champion you think are squishy and you want to build rather tanky items on. I could think of Anivia fo instance as Froggen used to be build her somewhat tanky even in competetive games (Season 4). There a few other AP Carries I can think of you mostly try to build HP on additionally. However, I think it's fairly difficult to define squishyness. Many champions you can build purely damage based can work with only one or two damage/ bruiser itemsI'm thinking of Rengar for instance.

Katarina I build Sunfire Aegis, Randuin's Omen, Ninja Tabi, Abyssal Mask, Banshee's Veil and Rylai's Crystal Scepter. Works out extremely well since I'd soak up most of the damage whilst providing alright damage / effects for my team to follow up on.

Sometimes I'd get Mercury's Treads but only if they lack an adc, most of the time I don't build this though since Katarina can't make use of the Tenacity.