Update) I asked my daughter what her favorite Pokémon was fir a cosplay, she responded with rayquaza. I asked my girlfriend if that was possible, she replied with "hold my beer". :
Rayquaza Cosplay by Shamrock440 on deviantART | Pokemon costumes, Fantasy character design, Pokemon cosplay
Cosplay.com - Rayquaza from Pokémon by yamidemonkyo
Rayquaza+ by slifertheskydragon on DeviantArt
Gijinka-dex — foxilery: Clear shot of my Mega Rayquaza cosplay...
Pokemon Go Rayquaza Hat Pikachu Event Exclusive Costume! | eBay
Colors Live - Shadow's Rayquaza Costume by Shadow BlackJinouga