Here are some ideas, other than sweeties/chocs:
All from M&S...standard delivery is £3.50.
Girls:
£3.00-£4.00...M&S...younger girls, sizes 4-13
https://www.marksandspencer.com/Mar...6&sr=1-4&rh=n:308237031,p_36:Under GBP5&page=
£3.50...M&S...Suitable for 3years +
https://www.marksandspencer.com/Dol...re&ref=sr_1_7&qid=1284123423&sr=1-7&rh=&page=
£3.50...M&S...Suitable for 3years +
https://www.marksandspencer.com/Lov...&qid=1284124373&sr=1-25&rh=n:206820031&page=3
£4.00...M&S...Suitable for 3years +
https://www.marksandspencer.com/Pep...23887&sr=1-73&rh=n:55577031,p_36:0-499&page=7
£2.50...M&S...Suitable for 5years +
https://www.marksandspencer.com/Pri...23691&sr=1-22&rh=n:55577031,p_36:0-499&page=2
£3.50...M&S...Suitable for 5years +
https://www.marksandspencer.com/Cra...re&ref=sr_1_4&qid=1284124292&sr=1-4&rh=&page=
£4.00...M&S...Suitable for 8years +
https://www.marksandspencer.com/Mar...23829&sr=1-69&rh=n:55577031,p_36:0-499&page=6
£4.00...M&S...Suitable for 8years +
https://www.marksandspencer.com/Fan...236&sr=1-112&rh=n:55577031,p_36:0-499&page=10
£4.00...M&S...older girls
https://www.marksandspencer.com/Mar...re&ref=sr_1_3&qid=1284124627&sr=1-3&rh=&page=
£4.00...M&S...older girls
https://www.marksandspencer.com/Dou...re&ref=sr_1_2&qid=1284124627&sr=1-2&rh=&page=
£4.00...M&S...older girls...one size/adults
https://www.marksandspencer.com/Mar...re&ref=sr_1_1&qid=1284125953&sr=1-1&rh=&page=
£3.50...M&S...older girls
https://www.marksandspencer.com/Hel...9&sr=1-181&rh=n:44021030,p_36:000-999&page=16
£3.50...M&S...older girls
https://www.marksandspencer.com/Ess...7&sr=1-180&rh=n:44021030,p_36:000-999&page=15
£3.50...M&S...older girls
https://www.marksandspencer.com/Hel...6&sr=1-202&rh=n:44021030,p_36:000-999&page=17
£3.00...M&S...older girls
https://www.marksandspencer.com/Sil...&sr=1-12&rh=n:181745031,p_36:Under GBP5&page=
£4.00...M&S...older girls/adult sizes
https://www.marksandspencer.com/Pai...&ref=sr_1_11&qid=1284127593&sr=1-11&rh=&page=
£4.00...M&S...older girls/adult sizes
https://www.marksandspencer.com/Pai...&ref=sr_1_12&qid=1284127593&sr=1-12&rh=&page=
£4.00...M&S...older girls/adult sizes
https://www.marksandspencer.com/Pai...re&ref=sr_1_8&qid=1284127593&sr=1-8&rh=&page=
£3.50...M&S...older girls/adult sizes
https://www.marksandspencer.com/Pai..._3&qid=1284127766&sr=1-3&rh=n:61481031&page=1
£3.00...M&S...age?
https://www.marksandspencer.com/Hel...re&ref=sr_1_1&qid=1284124627&sr=1-1&rh=&page=
£2.00...M&S...age?
https://www.marksandspencer.com/Fru...438&sr=1-30&rh=n:44021030,p_36:000-999&page=3
£2.50...M&S...age?
https://www.marksandspencer.com/Fru...478&sr=1-42&rh=n:44021030,p_36:000-999&page=4
£2.50...M&S...age?
https://www.marksandspencer.com/Mar...478&sr=1-44&rh=n:44021030,p_36:000-999&page=4
£3.50...M&S...age?
https://www.marksandspencer.com/Fru...8&sr=1-164&rh=n:44021030,p_36:000-999&page=14
Boys:
£4.00...M&S...Suitable for 3years +
https://www.marksandspencer.com/Toy...23612&sr=1-23&rh=n:55577031,p_36:0-499&page=2
£4.00...M&S...Suitable for 3years +
https://www.marksandspencer.com/Tho...&qid=1284124496&sr=1-86&rh=n:206820031&page=8
£3.50...M&S...Suitable for 5years +
https://www.marksandspencer.com/Mar...23751&sr=1-27&rh=n:55577031,p_36:0-499&page=3
£4.00...M&S...Suitable for 5years +
https://www.marksandspencer.com/Fan...23983&sr=1-96&rh=n:55577031,p_36:0-499&page=8
£2.50...M&S...Suitable for 5years +
https://www.marksandspencer.com/Boy...478&sr=1-46&rh=n:44021030,p_36:000-999&page=4
£3.50...M&S...Suitable for 5years +
https://www.marksandspencer.com/Mar...4&sr=1-143&rh=n:44021030,p_36:000-999&page=12
£4.00...M&S...Suitable for 5years +
https://www.marksandspencer.com/Ove...3&sr=1-253&rh=n:44021030,p_36:000-999&page=22
£3.50...M&S...Suitable for 8years +
https://www.marksandspencer.com/Pla...7&sr=1-172&rh=n:44021030,p_36:000-999&page=15
£3.50...M&S...age?
https://www.marksandspencer.com/Mar...5&sr=1-201&rh=n:44021030,p_36:000-999&page=17
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