Birthday cake icing tools (Moseley B13)

Hi there,
My mom is having a 70th birthday event this month and I am responsible for the cake (which I am a novice at). I've seen these for quite cheap on amazon but thought I'd put out some feelers on here to save environmental waste. I'm 1000's of people have bought these for a one off event before so... thanks for reading and hope to hear from someone soon :)

P.S I'm actually making a proper sponge cake rather than cup cakes