Vadnais rhymes with:
b'nai, bernay, cabernet, dna, donais, jna, jonbenet, lyonnais, macknay, manet, mcnay, monet, nay, nej, ney, rene, renee, resnais, sinay, snay
Vadnais sounds like:
vetoing, vetting, vietnam's, vietnamese, vitamins, vitanza, vividness, voiding, voting