I heard ave maria and sancte on the new dawn album, and got inspired again to start singing. I don't know how to warm up so I sing random stuff for a while then end it with singing walking in the air and if it sounds right I start practicing.

Here are a few songs that I sing to warm up and help me gain clarity with sounds:

Ema

Ema Emi Emu (X3)

Emu Emi Ema

Pamy

Pamy Piggy Pony (x2)

Pam me me Pig gy gy Po ny ny (x3)

Pamy Piggy pony

Teeter Totter

Teeter totter teeter totter (x4)

teet tot teet tot tot

Teeter totter teeter totter tot tot tot