He was part of their growing up years in the 1990s and beyond.

Over the past month, some 110 young Singaporeans aged 17 to 35 relived their childhood days by using common stationery - erasers with the Singapore flag - to construct a portrait of first Prime Minister Lee Kuan Yew.

A total of 4,877 erasers were used to build the installation which is 2.3m wide and 3.1m tall - titled Our Father, Our Country, Our Flag - ahead of the first anniversary of Mr Lee's death on Wednesday.

Yesterday, Mr Lee's youngest brother, Dr Lee Suan Yew, 82, added an eraser to the art piece at The Red Box in Somerset Road to complete it. Joining him were his son Shaun, daughter Shermay and National Youth Council (NYC) chief executive David Chua.

It will be on display outside the building until Sunday.

The art installation is a collaboration by the NYC, Youth Corps Singapore and Munch Munch, a company which produces old-school Singapore paraphernalia and snacks.

Munch Munch owner Raghrib Ken Hamid, who thought of the idea, said: "I thought it would be symbolic to use the Singapore flag erasers as a way to remember and celebrate the achievements of our founding Prime Minister."

Dr Lee said he was touched to know that young people appreciate what his late brother did for the country. And Mr Lee Kuan Yew strongly believed in building up the next generation, he added.

The event was one of several held yesterday to remember the late Mr Lee and the values he stood for.

In Bedok, residents made 25 art pieces with the seven shades of the rainbow, and put them together to form a bigger painting of Mr Lee.

It was a reference to a speech he delivered in 1996, when he urged young Singaporeans to seize opportunities and "find that rainbow, go ride it".

Some 1,500 people also gathered at Stamford Green for a ceremony where young Singaporeans from the four main ethnic groups reflected on Mr Lee's policies and legacy