A church will make smoothies “with a difference” in aid of Fairtrade at a South American style tea party this weekend.

Finchley and Golders Green MP Mike Freer will ride an eco bike at St Mary-at-Finchley Church, making Fairtrade smoothies from a blender fitted onto the bike’s saddle.

As he pedals, he will generate enough power to make the smoothies using Fairtrade bananas and fruit juices.

Church Rector, the Revd Philip Davidson will open the carnival activities by tying a giant inflatable Fairtrade banana on the church roof and Revd Stefan Chrysostomou will be dressed in a banana suit for the occasion.

Lynn Radnedge, chairman of the church’s Green and Fair Group, said: “We’re going bananas for Fairtrade and upholding our reputation for celebrating Fairtrade Fortnight in an offbeat way.

“Fairtrade’s aim this year is to try to make all bananas sold in the UK fairly traded and we have been promised  Fairtrade fruit and supplies by leading local supermarkets.”

The church will begin its Fairtrade Fiesta at 2.30pm on Saturday.

There will also be family games, mardi gras mask making, live music, Latin American dancing and homemade cakes.

Donations will be collected in aid of Columbian farmers.