If you would like amazing show stopping make-up without the stress and hassle of trying to do it yourself, then why don't you try a professional make-up artist. There are plenty around and not as expensive as you would think. Von Make-up artist from Manchester is my favourite, very talented and multi skilled.  I have had the pleasure of working with her a few times and she never fails to disappoint; she is fast, efficient and very professional. She is highly trained in sfx theatrical make-up, media, editorial and bridal.
To get a quote on Halloween make-up or anything else all you have to do is message her, there is nothing I'm sure she can't do. Here are some examples of her work and a link to her Facebook page.

https://www.facebook.com/pages/Von-make-up-artist/474079325978297?sk=timeline

If you are not in the Manchester area then have a look for one in your local area. Here are just a few that I found to save you the trouble.

Also have a look to see if the local college or University has a make up department as students will always be willing to do at cost, cheap or free makeovers to help boost their portfolio.

Karla Powell London, International make-up artist. 

Get a quote by contacting her.

http://www.karlapowell.co.uk

Grace Kingsley from Bristol, international make-up artist.

Get a quote on contact.

https://www.facebook.com/GraceKingsleyMakeUpArtist/timeline

Kelly Jones from Cardiff- international make up artist, Tv and film artist.

Contact for a quote

http://www.kjmakeup.co.uk

DollyMix make up artist Liverpool.

Bridal, glamour, editorial, theatre and media make up.

Contact for a quote.

https://www.facebook.com/pages/DOLLYMIX-Professional-Make-Up-Artists/245271898191?sk=timeline